0001398659-21-000010 | 10-Q | XBRL Viewer

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Cover - shares	9 Months Ended
Cover - shares	Sep. 30, 2021	Nov. 02, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-33626
Entity Registrant Name	GENPACT LIMITED
Entity Tax Identification Number	98-0533350
Entity Address, Address Line One	Canon's Court
Entity Address, Address Line Two	22 Victoria Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 12
Entity Address, Country	BM
City Area Code	441
Local Phone Number	298-3300
Title of 12(b) Security	Common shares, par value $0.01 per share
Trading Symbol	G
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		188,060,328
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001398659
Current Fiscal Year End Date	--12-31
Entity Incorporation, State or Country Code	D0

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 922,475	$ 680,440
Accounts receivable, net of allowance for credit losses of $27,707 and $29,527 as of December 31, 2020 and September 30, 2021, respectively	951,171	881,020
Prepaid expenses and other current assets	201,598	187,408
Total current assets	2,075,244	1,748,868
Property, plant and equipment, net	207,920	231,122
Operating lease right-of-use assets	273,587	304,714
Deferred tax assets	108,871	106,674
Intangible assets, net	171,008	236,732
Goodwill	1,685,684	1,695,688
Contract cost assets	240,378	225,897
Other assets, net of allowance for credit losses of $3,134 and $2,593 as of December 31, 2020 and September 30, 2021, respectively	286,439	323,818
Total assets	5,049,131	4,873,513
Current liabilities
Short-term borrowings	0	250,000
Current portion of long-term debt	383,293	33,537
Accounts payable	24,834	13,910
Income taxes payable	110,019	41,941
Accrued expenses and other current liabilities	735,980	806,769
Operating leases liability	58,222	56,479
Total current liabilities	1,312,348	1,202,636
Long-term debt, less current portion	1,280,571	1,307,371
Operating leases liability	254,347	289,363
Deferred tax liabilities	1,237	1,516
Other liabilities	247,742	238,398
Total liabilities	3,096,245	3,039,284
Shareholders' equity
Preferred shares, $0.01 par value, 250,000,000 authorized, none issued	0	0
Common shares, $0.01 par value, 500,000,000 authorized, 189,045,661 and 188,056,571 issued and outstanding as of December 31, 2020 and September 30, 2021, respectively	1,876	1,885
Additional paid-in capital	1,690,250	1,636,026
Retained earnings	830,372	741,658
Accumulated other comprehensive income (loss)	(569,612)	(545,340)
Total equity	1,952,886	1,834,229
Commitments and contingencies
Total liabilities and equity	$ 5,049,131	$ 4,873,513

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 29,527	$ 27,707
Allowance for credit losses, other assets	$ 2,593	$ 3,134
Preferred shares, par value (in usd per share)	$ 0.01	$ 0.01
Preferred shares, authorized (in shares)	250,000,000	250,000,000
Preferred shares, issued (in shares)	0	0
Common shares, par value (in usd per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	500,000,000	500,000,000
Common shares, issued (in shares)	189,045,661	189,045,661
Common shares, outstanding (in shares)	188,056,571	188,056,571

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net revenues	$ 1,015,737	$ 935,523	$ 2,949,934	$ 2,758,809
Cost of revenue	653,686	605,829	1,887,596	1,804,492
Gross profit	362,051	329,694	1,062,338	954,317
Operating expenses:
Selling, general and administrative expenses	215,957	198,335	620,857	581,989
Amortization of acquired intangible assets	13,898	10,235	44,624	31,673
Other operating (income) expense, net	(93)	(3,518)	(217)	14,991
Income from operations	132,289	124,642	397,074	325,664
Foreign exchange gains (losses), net	2,733	(2,402)	11,529	11,611
Interest income (expense), net	(12,765)	(12,757)	(38,198)	(38,072)
Other income (expense), net	1,480	960	8,966	946
Income before income tax expense	123,737	110,443	379,371	300,149
Income tax expense	21,351	25,008	83,008	66,855
Net income	$ 102,386	$ 85,435	$ 296,363	$ 233,294
Earnings per common share
Earnings per common share, Basic (in usd per share)	$ 0.55	$ 0.45	$ 1.58	$ 1.22
Earnings per common share, Diluted (in usd per sahre)	$ 0.53	$ 0.43	$ 1.54	$ 1.19
Weighted average number of common shares used in computing earnings per common share
Weighted average number of common shares used in computing basic earnings per common share (in shares)	187,856,026	190,949,108	187,945,234	190,705,671
Weighted average number of common shares used in computing dilutive earnings per common share (in shares)	193,159,929	196,655,140	192,885,252	196,100,067

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 102,386	$ 85,435	$ 296,363	$ 233,294
Other comprehensive income:
Currency translation adjustments	(9,043)	36,106	(36,721)	(36,959)
Net income (loss) on cash flow hedging derivatives, net of taxes (Note 7)	7,789	19,856	10,321	(18,893)
Retirement benefits, net of taxes	497	301	2,128	2,383
Other comprehensive income (loss)	(757)	56,263	(24,272)	(53,469)
Comprehensive income (loss)	$ 101,629	$ 141,698	$ 272,091	$ 179,825

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common shares	Common shares Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid- in Capital	Additional Paid- in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2019				190,118,181	190,118,181
Beginning balance, value at Dec. 31, 2019	$ 1,689,171	$ (3,984)	$ 1,685,187	$ 1,896	$ 1,896	$ 1,570,575	$ 1,570,575	$ 648,656	$ (3,984)	$ 644,672	$ (531,956)	$ (531,956)
Issuance of common shares on exercise of options (in shares)				542,634
Issuance of common shares on exercise of options	10,869			$ 6		10,863
Issuance of common shares under the employee stock purchase plan (in shares)				241,953
Issuance of common shares under the employee stock purchase plan	8,392			$ 3		8,389
Net settlement on vesting of restricted share units (in shares)				380,625
Net settlement on vesting of restricted share units	(7,721)			$ 4		(7,725)
Net settlement on vesting of performance units				902,532
Net settlement on vesting of performance units	$ (25,827)			$ 9		(25,836)
Stock repurchased and retired (in shares)	(1,781,978)			(1,781,978)
Stock repurchased and retired (in shares)	$ (73,552)			$ (18)				(73,534)
Expenses related to stock repurchase	(36)							(36)
Stock-based compensation expense	55,818					55,818
Comprehensive income (loss):
Net income (loss)	233,294							233,294
Other comprehensive income (loss)	(53,469)										(53,469)
Dividends, common stock	(55,775)							(55,775)
End balance (in shares) at Sep. 30, 2020				190,403,947
End balance, value at Sep. 30, 2020	1,777,180			$ 1,900		1,612,084		748,621			(585,425)
Beginning balance (in shares) at Jun. 30, 2020				190,721,373
Beginning balance, value at Jun. 30, 2020	1,660,614			$ 1,903		1,590,017		710,382			(641,688)
Issuance of common shares on exercise of options (in shares)				203,306
Issuance of common shares on exercise of options	4,273			$ 2		4,271
Issuance of common shares under the employee stock purchase plan (in shares)				67,639
Issuance of common shares under the employee stock purchase plan	2,568			$ 1		2,567
Net settlement on vesting of restricted share units (in shares)				151,419
Net settlement on vesting of restricted share units	(4,256)			$ 2		(4,258)
Net settlement on vesting of performance units				0
Net settlement on vesting of performance units	0
Stock repurchased and retired (in shares)				(739,790)
Stock repurchased and retired (in shares)	(28,552)			$ (8)				(28,544)
Expenses related to stock repurchase	(15)							(15)
Stock-based compensation expense	19,487					19,487
Comprehensive income (loss):
Net income (loss)	85,435							85,435
Other comprehensive income (loss)	56,263										56,263
Dividends, common stock	(18,637)							(18,637)
End balance (in shares) at Sep. 30, 2020				190,403,947
End balance, value at Sep. 30, 2020	$ 1,777,180			$ 1,900		1,612,084		748,621			(585,425)
Comprehensive income (loss):
Common shares, issued (in shares)	189,045,661
Beginning balance (in shares) at Dec. 31, 2020	188,056,571			189,045,661
Beginning balance, value at Dec. 31, 2020	$ 1,834,229			$ 1,885		1,636,026		741,658			(545,340)
Issuance of common shares on exercise of options (in shares)	1,020,125			1,020,125
Issuance of common shares on exercise of options	$ 20,913			$ 11		20,902
Issuance of common shares under the employee stock purchase plan (in shares)				216,378
Issuance of common shares under the employee stock purchase plan	8,873			$ 2		8,871
Net settlement on vesting of restricted share units (in shares)				264,376
Net settlement on vesting of restricted share units	(5,842)			$ 3		(5,845)
Net settlement on vesting of performance units				1,102,440
Net settlement on vesting of performance units	$ (28,291)			$ 11		(28,302)
Stock repurchased and retired (in shares)	(3,592,409)			(3,592,409)
Stock repurchased and retired (in shares)	$ (147,152)			$ (36)				(147,116)
Expenses related to stock repurchase	(72)							(72)
Stock-based compensation expense	58,604					58,604
Others	6
Comprehensive income (loss):
Net income (loss)	296,363							296,363
Other comprehensive income (loss)	(24,272)										(24,272)
Dividends, common stock	$ (60,461)							(60,461)
End balance (in shares) at Sep. 30, 2021	188,056,571			188,056,571
End balance, value at Sep. 30, 2021	$ 1,952,886			$ 1,876		1,690,250		830,372			(569,612)
Beginning balance (in shares) at Jun. 30, 2021				187,350,298
Beginning balance, value at Jun. 30, 2021	1,838,969			$ 1,869		1,657,756		748,199			(568,855)
Issuance of common shares on exercise of options (in shares)				511,813
Issuance of common shares on exercise of options	11,737			$ 5		11,732
Issuance of common shares under the employee stock purchase plan (in shares)				60,374
Issuance of common shares under the employee stock purchase plan	2,819			$ 1		2,818
Net settlement on vesting of restricted share units (in shares)				134,086
Net settlement on vesting of restricted share units	(3,534)			$ 1		(3,535)
Stock repurchased and retired (in shares)				0
Stock repurchased and retired (in shares)	0			$ 0				0
Expenses related to stock repurchase	0							0
Stock-based compensation expense	21,485					21,485
Others	(6)
Comprehensive income (loss):
Net income (loss)	102,386							102,386
Other comprehensive income (loss)	(757)										(757)
Dividends, common stock	$ (20,213)							(20,213)
End balance (in shares) at Sep. 30, 2021	188,056,571			188,056,571
End balance, value at Sep. 30, 2021	$ 1,952,886			$ 1,876		$ 1,690,250		$ 830,372			$ (569,612)
Comprehensive income (loss):
Common shares, issued (in shares)	189,045,661

Consolidated Statements of Equity (Parenthetical)	12 Months Ended
Consolidated Statements of Equity (Parenthetical)	Dec. 31, 2019 $ / shares
Statement of Stockholders' Equity [Abstract]
Accounting Standards Update [Extensible List]	ASC 326
Dividends per common share (in usd per share)	$ 0.085

- Definition

Indicates amendment to accounting standards.

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+ Details

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities
Net income	$ 296,363	$ 233,294
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	82,344	88,273
Amortization of debt issuance costs	1,969	1,685
Amortization of acquired intangible assets	44,624	31,673
Write-down of intangible assets and property, plant and equipment	915	10,647
Allowance for credit losses	2,412	3,226
Unrealized loss (gain) on revaluation of foreign currency asset/liability	(4,252)	6,164
Stock-based compensation expense	58,604	55,818
Deferred tax benefit	(6,236)	(9,287)
Write-down of operating lease right-of-use assets and other assets	0	10,244
Others, net	806	(1,131)
Change in operating assets and liabilities:
(Increase) decrease in accounts receivable	(78,626)	49,299
(Increase) decrease in prepaid expenses, other current assets, contract cost assets, operating lease right-of-use assets and other assets	43,071	(148,909)
Increase (decrease) in accounts payable	11,138	(2,646)
Increase (decrease) in accrued expenses, other current liabilities, operating lease liabilities and other liabilities	(74,085)	44,830
Increase in income taxes payable	68,430	52,033
Net cash provided by operating activities	447,477	425,213
Investing activities
Purchase of property, plant and equipment	(31,385)	(47,932)
Payment for internally generated intangible assets (including intangibles under development)	(3,907)	(8,391)
Proceeds and recovery from sale of property, plant and equipment and intangible assets	4,511	447
Payment for business acquisitions, net of cash acquired	(6,613)	0
Proceed from sale of investment	142	0
Net cash (used for) investing activities	(37,252)	(55,876)
Financing activities
Repayment of finance lease obligations	(8,659)	(7,240)
Payment of debt issuance costs	(3,018)	(620)
Proceeds from long-term debt	350,000	0
Repayment of long-term debt	(25,500)	(25,500)
Proceeds from short-term borrowings	0	455,000
Repayment of short-term borrowings	(250,000)	(280,000)
Proceeds from issuance of common shares under stock-based compensation plans	29,786	19,261
Payment for net settlement of stock-based awards	(33,467)	(33,157)
Payment of earn-out consideration	(2,556)	0
Dividend paid	(60,461)	(55,775)
Payment for stock repurchased and retired (including expenses related to stock repurchase)	(147,224)	(73,588)
Others	(6)	0
Net cash (used for) financing activities	(151,105)	(1,619)
Effect of exchange rate changes	(17,085)	(31,415)
Net increase in cash and cash equivalents	259,120	367,718
Cash and cash equivalents at the beginning of the period	680,440	467,096
Cash and cash equivalents at the end of the period	922,475	803,399
Supplementary information
Cash paid during the period for interest	25,715	28,160
Cash paid during the period for income taxes, net of refund	$ 38,040	$ 131,456

Organization	9 Months Ended
Organization	Sep. 30, 2021
Accounting Policies [Abstract]
Organization	OrganizationThe Company is a global professional services firm that drives digitally-led innovation and runs digitally-enabled intelligent operations for its clients, guided by its experience running thousands of processes for hundreds of Fortune Global 500 clients. The Company has approximately 105,400 employees serving clients in key industry verticals from more than 30 countries.

Summary of significant accounting policies

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Summary of significant accounting policies

(a) Basis of preparation and principles of consolidation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for reporting on Form 10-Q. Accordingly, they do not include certain information and note disclosures required by generally accepted accounting principles for annual financial reporting and should be read in conjunction with the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The accompanying consolidated financial statements reflect all adjustments that management considers necessary for a fair presentation of the results of operations for these periods.

The accompanying financial statements have been prepared on a consolidated basis and reflect the financial statements of Genpact Limited, a Bermuda company, and all of its subsidiaries that are more than 50% owned and controlled. When the Company does not have a controlling interest in an entity but exerts significant influence over the entity, the Company applies the equity method of accounting. All intercompany transactions and balances are eliminated in consolidation.

(b) Use of estimates

The preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements. Significant items subject to such estimates and assumptions include the useful lives of property, plant and equipment, intangible assets and goodwill, revenue recognition, allowance for credit losses, valuation allowances for deferred tax assets, the valuation of derivative financial instruments, the measurement of lease liabilities and right-of-use (“ROU”) assets, measurements of stock-based compensation, assets and obligations related to employee benefits, the nature and timing of the satisfaction of performance obligations, the standalone selling price of performance obligations, variable consideration, other obligations for revenue recognition, income tax uncertainties and other contingencies. Management believes that the estimates used in the preparation of the consolidated financial statements are reasonable, and management has made assumptions about the possible effects of the ongoing COVID-19 pandemic on critical and significant accounting estimates. Although these estimates and assumptions are based upon management’s best knowledge of current events and actions, actual results could differ from these estimates. Any changes in estimates are adjusted prospectively in the Company’s consolidated financial statements.

The Company accounts for its business combinations using the acquisition method of accounting in accordance with Accounting Standard Codification (“ASC”) Topic 805, Business Combinations, by recognizing the identifiable tangible and intangible assets acquired and liabilities assumed, and any non-controlling interest in the acquired business, measured at their acquisition date fair values. Contingent consideration is included within the acquisition cost and is recognized at its fair value on the acquisition date. A liability resulting from contingent consideration is re-measured to fair value as of each reporting date until the contingency is resolved. Changes in fair value are recognized in earnings. All assets and liabilities of the acquired businesses, including goodwill, are assigned to reporting units. Acquisition-related costs are expensed as incurred under selling, general and administrative expenses.

2. Summary of significant accounting policies (Continued)

Goodwill represents the cost of acquired businesses in excess of the fair value of identifiable tangible and intangible net assets purchased. Goodwill is not amortized but is tested for impairment at least on an annual basis on December 31, based on a number of factors, including operating results, business plans and future cash flows. The Company performs an assessment of qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. Based on the assessment of events or circumstances, the Company performs a quantitative assessment of goodwill impairment if it determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, based on the quantitative impairment analysis, the carrying value of the goodwill of a reporting unit exceeds the fair value of such goodwill, an impairment loss is recognized in an amount equal to the excess. In addition, the Company performs a qualitative assessment of goodwill impairment between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. See Note 10 for information and related disclosures.

Intangible assets acquired individually or with a group of other assets or in a business combination and developed internally are carried at cost less accumulated amortization and accumulated impairment loss based on their estimated useful lives as follows:


Customer-related intangible assets	1	-	11 years
Marketing-related intangible assets	1	-	10 years
Technology-related intangible assets	2	-	8 years

Intangible assets are amortized over their estimated useful lives using a method of amortization that reflects the pattern in which the economic benefits of the intangible assets are consumed or otherwise realized.

In business combinations where the fair value of identifiable tangible and intangible net assets purchased exceeds the cost of the acquired business, the Company recognizes the resulting gain under “Other operating (income) expense, net” in the consolidated statements of income.

The Company also capitalizes certain software and technology-related development costs incurred in connection with developing or obtaining software or technology for sale/lease to customers when the initial design phase is completed and commercial and technological feasibility has been established. Any development cost incurred before technological feasibility is established is expensed as incurred as research and development costs. Technological feasibility is established upon completion of a detailed design program or, in its absence, completion of a working model. Capitalized software and technology costs include only (i) external direct costs of materials and services utilized in developing or obtaining software and technology and (ii) compensation and related benefits for employees who are directly associated with the project.

Costs incurred in connection with developing or obtaining software or technology for sale/lease to customers which are under development and not put to use are disclosed under “intangible assets under development.” Advances paid towards the acquisition of intangible assets outstanding as of each balance sheet date are disclosed under “intangible assets under development.”

Capitalized software and technology costs are included in intangible assets under technology-related intangible assets on the Company’s balance sheet and are amortized on a straight-line basis when placed into service over the estimated useful lives of the software and technology.

The Company evaluates the remaining useful life of intangible assets that are being amortized at each reporting period wherever events and circumstances warrant a revision to the remaining period of amortization, and the remaining carrying amount of the intangible asset is amortized prospectively over that revised remaining useful life.

2. Summary of significant accounting policies (Continued)

(d) Financial instruments and concentration of credit risk

Financial instruments that potentially subject the Company to concentration of credit risk are reflected principally in cash and cash equivalents, derivative financial instruments and accounts receivable. The Company places its cash and cash equivalents and derivative financial instruments with corporations and banks with high investment grade ratings, limits the amount of credit exposure with any one corporation or bank and conducts ongoing evaluations of the creditworthiness of the corporations and banks with which it does business. To reduce its credit risk on accounts receivable, the Company conducts ongoing credit evaluations of its customers. The General Electric Company (“GE”) accounted for 16% and 10% of the Company’s receivables as of December 31, 2020 and September 30, 2021, respectively. GE accounted for 12% and 13% of the Company’s revenues for the three and nine months ended September 30, 2020, respectively and 9% and 10% of the Company’s revenues for the three and nine months ended September 30, 2021, respectively.

(e) Accounts receivable

Accounts receivable are recorded at the invoiced or to be invoiced amount and do not bear interest. Amounts collected on trade accounts receivable are included in net cash provided by operating activities in the consolidated statements of cash flows. The Company maintains an allowance for current expected credit losses inherent in its accounts receivable portfolio. In establishing the required allowance, management considers historical losses which are adjusted to current market conditions and a reasonable and supportable forecast. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The Company does not have any off-balance-sheet credit exposure related to its customers.

(f) Revenue Recognition

The Company derives its revenue primarily from business process management services, including analytics, consulting and related digital solutions and information technology services, which are provided primarily on a time-and-material, transaction or fixed-price basis. The Company recognizes revenue upon the transfer of control of promised services to its customers in an amount that reflects the consideration the Company expects to receive in exchange for those services. Revenues from services rendered under time-and-materials and transaction-based contracts are recognized as the services are provided. The Company’s fixed-price contracts include contracts for customization of applications, maintenance and support services. Revenues from these contracts are recognized ratably over the term of the agreement. The Company accrues for revenue and unbilled receivables for services rendered between the last billing date and the balance sheet date.

The Company’s contracts with its customers also include incentive payments received for discrete benefits delivered or promised to be delivered to the customer or service level agreements that could result in credits or refunds to the customer. Revenues relating to such arrangements are accounted for as variable consideration when the amount of revenue to be recognized can be estimated to the extent that it is probable that a significant reversal of any incremental revenue will not occur.

The Company records deferred revenue attributable to certain process transition activities where such activities do not represent separate performance obligations. Revenues relating to such transition activities are classified under contract liabilities and subsequently recognized ratably over the period in which the related services are performed. Costs relating to such transition activities are fulfillment costs which are directly related to the contract and result in the generation or enhancement of resources. Such costs are expected to be recoverable under the contract and are therefore classified as contract cost assets and recognized ratably over the estimated expected period of benefit under cost of revenue.

Revenues are reported net of value-added tax, business tax and applicable discounts and allowances. Reimbursements of out-of-pocket expenses received from customers have been included as part of revenues.

2. Summary of significant accounting policies (Continued)

Revenue for performance obligations that are satisfied over time is recognized in accordance with the methods prescribed for measuring progress. The input (cost expended) method has been used to measure progress towards completion as there is a direct relationship between input and the satisfaction of a performance obligation. Provisions for estimated losses, if any, on uncompleted contracts are recorded in the period in which such losses become probable based on the current contract estimates.

The Company enters into multiple-element revenue arrangements in which a customer may purchase a combination of products or services. The Company determines whether each product or service promised to a customer is capable of being distinct, and is distinct in the context of the contract. If not, the promised products or services are combined and accounted for as a single performance obligation. In the event of a multiple-element revenue arrangement, the Company allocates the arrangement consideration to separately identifiable performance obligations based on their relative stand-alone selling prices.

Certain contracts may include offerings such as sale of licenses, which may be perpetual or subscription-based. Revenue from distinct perpetual licenses is recognized upfront at the point in time when the software is made available to the customer. Revenue from distinct, non-cancellable, subscription-based licenses is recognized at the point in time it is transferred to the customer. Revenue from any associated maintenance or ongoing support services is recognized ratably over the term of the contract. For a combined software license/services performance obligation, revenue is recognized over the period that the services are performed.

All incremental and direct costs incurred for acquiring contracts, such as certain sales commissions, are classified as contract cost assets. Such costs are amortized over the expected period of benefit and recorded under selling, general and administrative expenses.

Other upfront fees paid to customers are classified as contract assets. Such fees are amortized over the expected period of benefit and recorded as an adjustment to the transaction price and deducted from revenue.

Timing of revenue recognition may differ from the timing of invoicing. If a payment is received in respect of services prior to the delivery of services, the payment is recognized as an advance from the customer and classified as a contract liability. Contract assets and contract liabilities relating to the same customer contract are offset against each other and presented on a net basis in the consolidated financial statements.

Significant judgements

The Company often enters into contracts with its customers that include promises to transfer multiple products and services to the customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately rather than together may require significant judgement.

Judgement is also required to determine the standalone selling price for each distinct performance obligation. In instances where the standalone selling price is not directly observable, it is determined using information that may include market conditions and other observable inputs.

Customer contracts sometimes include incentive payments received for discrete benefits delivered to the customer or service level agreements that could result in credits or refunds to the customer. Such amounts are estimated at contract inception and are adjusted at the end of each reporting period as additional information becomes available only to the extent that it is probable that a significant reversal of any incremental revenue will not occur.

(g) Leases

At the inception of a contract, the Company assesses whether the contract is, or contains, a lease. The Company’s assessment is based on whether: (1) the contract involves the use of a distinct identified asset, (2) the Company obtains the right to substantially all the economic benefit from the use of the asset throughout the term of the contract, and (3) the Company has the right to direct the use of the asset. At the inception of a lease, the consideration in the contract is allocated to each lease component based on its relative standalone price to determine the lease payments.

2. Summary of significant accounting policies (Continued)

Leases are classified as either finance leases or operating leases. A lease is classified as a finance lease if any one of the following criteria are met: (1) the lease transfers ownership of the asset by the end of the lease term, (2) the lease contains an option to purchase the asset that is reasonably certain to be exercised, (3) the lease term is for a major part of the remaining useful life of the asset or (4) the present value of the lease payments equals or exceeds substantially all of the fair value of the asset. A lease is classified as an operating lease if it does not meet any one of the above criteria.

For all leases at the lease commencement date, a ROU asset and a lease liability are recognized. The lease liability represents the present value of the lease payments under the lease. Lease liabilities are initially measured at the present value of the lease payments not yet paid, discounted using the discount rate for the lease at the lease commencement. The lease liabilities are subsequently measured on an amortized cost basis. The lease liability is adjusted to reflect interest on the liability and the lease payments made during the period. Interest on the lease liability is determined as the amount that results in a constant periodic discount rate on the remaining balance of the liability.

The ROU asset represents the right to use the leased asset for the lease term. The ROU asset for each lease initially includes the amount of the initial measurement of the lease liability adjusted for any lease payments made to the lessor at or before the commencement date, accrued lease liabilities and any lease incentives received or any initial direct costs incurred by the Company.

The ROU asset of finance leases is subsequently measured at cost, less accumulated amortization and any accumulated impairment losses. The ROU asset of operating leases is subsequently measured from the carrying amount of the lease liability at the end of each reporting period, and is equal to the carrying amount of lease liabilities adjusted for (1) unamortized initial direct costs, (2) prepaid/(accrued) lease payments and (3) the unamortized balance of lease incentives received.

The carrying value of ROU assets is reviewed for impairment, similar to long-lived assets, whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable.

The Company has elected to not separate lease and non-lease components for all of its leases and to use the recognition exemptions for lease contracts that, at commencement date, have a lease term of 12 months or less and do not contain a purchase option (“short-term leases”).

Significant judgements

The Company determines the lease term as the non-cancellable term of the lease, together with any periods covered by an option to extend the lease if it is reasonably certain to be exercised, or any periods covered by an option to terminate the lease, if it is reasonably certain not to be exercised.

Under certain of its leases, the Company has a renewal and termination option to lease assets for additional terms between one and ten years. The Company applies judgement in evaluating whether it is reasonably certain to exercise the option to renew or terminate the lease. The Company considers all relevant factors that create an economic incentive for it to exercise the renewal or termination option. After the commencement date, the Company reassesses the lease term if there is a significant event or change in circumstances that is within the Company’s control and affects its ability to exercise (or not to exercise) the option to renew or terminate.

The Company has applied an incremental borrowing rate for the purpose of computing lease liabilities based on the remaining lease term and the rates prevailing in the jurisdictions where leases were executed.

(h) Cost of revenue

Cost of revenue primarily consists of salaries and benefits (including stock-based compensation), recruitment, training and related costs of employees who are directly responsible for the performance of services for customers, their supervisors and certain support personnel who may be dedicated to a particular client or a set of processes.

2. Summary of significant accounting policies (Continued)

It also includes operational expenses, which consist of facilities maintenance expenses, travel and living expenses, rent, IT expenses, and consulting and certain other expenses. Consulting charges represent the cost of consultants and contract resources with specialized skills who are directly responsible for the performance of services for clients and travel and other billable costs related to the Company’s clients. It also includes depreciation of property, plant and equipment, and amortization of intangible and ROU assets which are directly related to providing services that generate revenue.

(i) Selling, general and administrative expenses

Selling, general and administrative (“SG&A”) expenses consist of expenses relating to salaries and benefits (including stock-based compensation) as well as costs related to recruitment, training and retention of senior management and other support personnel in enabling functions such as human resources, finance, legal, marketing, sales and sales support, and other support personnel. The operational costs component of SG&A expenses also includes travel and living costs for such personnel. SG&A expenses also include acquisition-related costs, legal and professional fees (which represent the costs of third party legal, tax, accounting and other advisors), investment in research and development, digital technology, advanced automation and robotics, and an allowance for credit losses. It also includes depreciation of property, plant and equipment, and amortization of intangibles and ROU assets other than those included in cost of revenue.

(j) Credit losses

Allowance for credit losses is recognized for all debt instruments other than those held at fair value through profit or loss. The Company pools its accounts receivable (other than deferred billings) based on similar risk characteristics in estimating expected credit losses. Credit losses for accounts receivable are based on the roll-rate method, and the Company recognizes a loss allowance based on lifetime expected credit losses at each reporting date. The Company has established a provision matrix based on historical credit loss experience, adjusted for forward-looking factors and the economic environment. The Company believes the most relevant forward-looking factors are economic environment, gross domestic product, inflation rates and unemployment rates for each of the countries in which the Company or its customers operate, and accordingly the Company adjusts historical loss rates based on expected changes in these factors. At every reporting date, observed historical default rates are updated to reflect changes in the Company’s forward-looking estimates.

Credit losses for other financial assets and deferred billings are based on the discounted cash flow (“DCF”) method. Under the DCF method, the allowance for credit losses reflects the difference between the contractual cash flows due in accordance with the contract and the present value of the cash flows expected to be collected. The expected cash flows are discounted at the effective interest rate of the financial asset. Such allowances are based on the credit losses expected to arise over the life of the asset which includes consideration of prepayments based on the Company’s expectation as of the balance sheet date.

A financial asset is written off when it is deemed uncollectible and there is no reasonable expectation of recovering the contractual cash flows. Expected recoveries of amounts previously written off, not to exceed the aggregate amounts previously written off, are included in determining the allowance at each reporting period.

Credit losses are presented as a credit loss expense within “Selling, general and administrative expenses.” Subsequent recoveries of amounts previously written off are credited against the same line item.

(k) Reclassification

Certain reclassifications have been made in the consolidated financial statements of prior periods to conform to the classification used in the current period. The impact of such reclassifications on the consolidated financial statements is not material.

2. Summary of significant accounting policies (Continued)

(l) Impairment of long-lived assets

Long-lived assets, including certain intangible assets, to be held and used are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Such assets are required to be tested for impairment if the carrying amount of the assets is higher than the future undiscounted net cash flows expected to be generated by the assets. The impairment amount to be recognized is measured as the amount by which the carrying value of the assets exceeds their fair value. The Company determines fair value by using a discounted cash flow approach.

(m) Recently issued accounting pronouncements

The authoritative bodies release standards and guidance which are assessed by management for impact on the Company’s consolidated financial statements.

The Company has adopted the following recently released accounting standards:

In June 2016, the FASB issued ASU No. 2016-13, “Measurement of credit losses on financial instruments.” The ASU requires measurement and recognition of expected credit losses for financial assets held by the Company. The ASU requires entities to estimate an expected lifetime credit loss on financial assets ranging from short-term trade accounts receivable to long-term financings. The ASU became effective for the Company beginning January 1, 2020, including interim periods in fiscal year 2020.

In May 2019, the FASB issued ASU No. 2019-05, “Financial Instruments—Credit Losses (Topic 326).” The ASU provides final guidance that allows entities to make an irrevocable one-time election upon adoption of the new credit losses standard to measure financial assets at amortized cost (except held-to-maturity securities) using the fair value option. The ASU became effective for the Company beginning January 1, 2020, including interim periods in fiscal year 2020.

In November 2019, the FASB issued ASU No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses.” This ASU clarifies that the scope of the guidance related to expected recoveries extends to purchased financial assets with credit deterioration. For entities that have not yet adopted ASU 2016-13, the amendments in ASU 2019-11 are effective on the same date as those in ASU 2016-13. For entities that have adopted ASU 2016-13, the amendments in ASU 2019-11 are effective for fiscal years beginning January 1, 2020 and interim periods therein.

The Company adopted ASU 2016-13, ASU 2019-05 and ASU 2019-11 beginning January 1, 2020, including interim periods in fiscal year 2020.

In October 2020, the FASB issued ASU No. 2020-09, “Codification Improvements to Topic 470, Debt— Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762.” The SEC in its Release No. 33-10762 in March 2020 has adopted new rules on financial disclosure requirements for guarantors and issuers of guaranteed securities and affiliates whose securities collateralize issuers’ securities. This ASU revises certain SEC paragraphs of the FASB’s Accounting Standards Codification (ASC) to reflect, as appropriate, the amended financial statement disclosure requirements in SEC Release 33-10762. The amended rules were effective January 4, 2021 but early compliance was permitted. The Company adopted the amended rules issued by the SEC in its Release No. 33-10762 in the first quarter of 2020. Accordingly, the Company has already adopted the amendments under this ASU, and the disclosures related to guarantor financial information have been omitted from the Notes to the Consolidated Financial Statements and included under Part II, Item 7—“Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2020.

Business acquisitions	9 Months Ended
Business acquisitions	Sep. 30, 2021
Business Combinations [Abstract]
Business acquisitions	Business acquisitions (a) Enquero Inc On December 31, 2020, the Company acquired 100% of the outstanding equity interests in Enquero Inc, a California corporation, and certain affiliated entities in India, the Netherlands and Canada (collectively referred to as “Enquero”) for total purchase consideration of $148,797. This amount represents cash consideration of $137,166, net of cash acquired of $11,631. The total purchase consideration paid by the Company to the sellers on the closing date was $141,938. No portion of the purchase consideration is outstanding as of September 30, 2021. The Company is evaluating adjustments related to certain income and other taxes, which, when determined, may result in the recognition of additional assets or liabilities as of the acquisition date. The measurement period will not exceed one year from the acquisition date. This acquisition increased the scale and depth of the Company’s data and analytics capabilities and enhanced the Company’s ability to accelerate the digital transformation journeys of its clients through cloud technologies and advanced data analytics. In connection with this acquisition, the Company recorded $49,000 in customer-related intangibles, $9,500 in marketing-related intangibles and $1,400 in technology-related intangibles, which have a weighted average amortization period of four years. Goodwill arising from the acquisition amounting to $86,561 has been allocated using a relative fair value allocation method to each of the Company’s reporting segments as follows: to the Banking, Capital Markets and Insurance (“BCMI”) segment in the amount of $2,556, to the Consumer Goods, Retail, Life Sciences and Healthcare (“CGRLH”) segment in the amount of $22,211 and to the High Tech, Manufacturing and Services (“HMS”) segment in the amount of $61,794. The goodwill arising from this acquisition is not deductible for income tax purposes. The goodwill represents primarily the acquired capabilities and other benefits expected to result from combining the acquired operations with the Company’s existing operations. Acquisition-related costs of $1,590 have been included in selling, general and administrative expenses as incurred. In connection with the transaction, the Company also acquired certain assets with a value of $32,759, assumed certain liabilities amounting to $17,113 and recognized a net deferred tax liability of $13,310. The agreement with the sellers provides a full indemnity to the Company for all pre-closing income and non-income tax liabilities up to a maximum of the purchase consideration, including interest and penalties thereon. The Company would not be financially or materially affected by any liabilities that may arise from such exposures. Accordingly, the Company recognized an indemnification asset of $5,848 based on the information that was available at the date of the acquisition, which is included in the assets taken over by the Company. The results of operations of the acquired business and the fair value of the acquired assets and assumed liabilities are included in the Company’s consolidated financial statements with effect from the date of the acquisition. (b) SomethingDigital.Com LLC On October 5, 2020, the Company acquired 100% of the outstanding equity/limited liability company interests in SomethingDigital.Com LLC, a New York limited liability company, for total purchase consideration of $57,451. This amount represents cash consideration of $56,073, net of cash acquired of $1,378. The total purchase consideration paid by the Company to the sellers on the closing date was $57,704, resulting in a recoverable of $253, which was received in the three months ended March 31, 2021. This acquisition supported the Company’s strategy to integrate experience and process innovation to help clients on their digital transformation journeys and expanded on the Company’s existing experience capabilities to support end-to-end digital commerce solutions, both business-to-business and business-to-consumer. Additionally, this acquisition expanded the Company’s capabilities into Magento Commerce, which powers Adobe Commerce Cloud, and Shopify Plus, a cloud-based ecommerce platform for high volume merchants. In connection with this acquisition, the Company recorded $11,900 in customer-related intangibles and $3,500 in marketing-related intangibles which have a weighted average amortization period of four years. Goodwill arising from the acquisition amounting to $36,926 has been allocated using a relative fair value allocation method to two of the Company’s reporting segments as follows: to the CGRLH segment in the amount of $30,373 and to the HMS segment in the amount of $6,553. Of the total goodwill arising from this acquisition, $35,084 is deductible for income tax purposes. The goodwill represents primarily the acquired capabilities and other benefits expected to result from combining the acquired operations with those of the Company’s existing operations. 3. Business acquisitions (Continued) Acquisition-related costs of $1,060 have been included in selling, general and administrative expenses as incurred. In connection with the transaction, the Company also acquired certain assets with a value of $9,538, assumed certain liabilities amounting to $4,494 and recognized a net deferred tax asset of $81. The results of operations of the acquired business and the fair value of the acquired assets and assumed liabilities are included in the Company’s consolidated financial statements with effect from the date of the acquisition. (c) Rightpoint Consulting, LLC On November 12, 2019, the Company acquired 100% of the outstanding equity/limited liability company interests in Rightpoint Consulting, LLC, an Illinois limited liability company, and certain affiliated entities in the United States and India (collectively referred to as “Rightpoint”) for total purchase consideration of $270,669. This amount includes cash consideration of $268,170, net of cash acquired of $2,499. The total purchase consideration paid by the Company to the sellers on the closing date was $248,470 resulting in a payable of $22,199. $5,166 of the total purchase consideration remains payable as of September 30, 2021. This acquisition expanded the Company’s capabilities in improving customer experience. The securities purchase agreement between the Company and the selling equity holders of Rightpoint provided certain of the selling equity holders the option to elect to either (a) receive 100% consideration in cash at the closing date for their limited liability company interests and vested options or (b) “roll over” and retain 25% of their Rightpoint limited liability company interests and vested options for a three-year rollover period and receive cash consideration at closing for the remaining 75% of their Rightpoint limited liability company interests and vested options. Certain selling equity holders elected to receive deferred, variable earn-out consideration with an estimated value of $21,500 over the rollover period of three years. The amount of deferred earn-out consideration ultimately payable by the Company to the selling equity holders of Rightpoint will be based on the future revenue multiple of the acquired business. Additionally, under the purchase agreement the selling equity holders are obligated to sell their rollover interests to the Company. Accordingly, the Company has obtained control over 100% of the outstanding equity/limited liability company interests of Rightpoint as of November 12, 2019. See Note 6, “Fair value measurements,” for additional details. In connection with this acquisition, the Company recorded $46,000 in customer-related intangibles and $29,000 in marketing-related intangibles which have a weighted average amortization period of five years. Goodwill arising from the acquisition amounting to $177,181 has been allocated using a relative fair value allocation method to each of the Company’s reporting segments as follows: to the BCMI segment in the amount of $16,983, to the CGRLH segment in the amount of $42,993 and to the HMS segment in the amount of $117,205. Of the total goodwill arising from this acquisition, $91,929 is deductible for income tax purposes. The goodwill represents primarily the acquired capabilities and other benefits expected to result from combining the acquired operations with those of the Company. Acquisition-related costs of $7,385 have been included in selling, general and administrative expenses as incurred. In connection with the transaction, the Company also acquired certain assets with a value of $39,140, assumed certain liabilities amounting to $22,295 and recognized a net deferred tax liability of $1,643. The results of operations of the acquired business and the fair value of the acquired assets and assumed liabilities are included in the Company’s consolidated financial statements with effect from the date of the acquisition.

Cash and cash equivalents

9 Months Ended

Sep. 30, 2021

Cash and Cash Equivalents [Abstract]

Cash and cash equivalents


	As of December 31, 2020		As of September 30, 2021
Cash and other bank balances	680,440		922,475
Total	$	680,440	$	922,475

Accounts receivable, net of allowance for credit losses

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Accounts receivable, net of allowance for credit losses

Accounts receivable were $908,727 and $980,698 and allowance for credit losses were $27,707 and $29,527, resulting in net accounts receivable balances of $881,020 and $951,171 as of December 31, 2020 and September 30, 2021, respectively.

The following table provides details of the Company’s allowance for credit losses on accounts receivable:


	Year ended December 31, 2020		Nine months ended September 30, 2021
Opening balance as of January 1	$	29,969	$	27,707
Transition period adjustment on accounts receivables (through retained earnings) pursuant to adoption of ASC 326	4,185		—
Adjusted balance as of January 1	$	34,154	$	27,707
Additions due to acquisitions	200		—
Additions charged/reversal released to cost and expense	3,307		2,953
Deductions/effect of exchange rate fluctuations	(9,954)		(1,133)
Closing balance	$	27,707	$	29,527

In addition, deferred billings were $28,491 and $14,532 and allowance for credit losses on deferred billings were $3,134 and $2,593, resulting in net deferred billings balances of $25,357 and $11,939 as of December 31, 2020 and September 30, 2021, respectively.

Total credit losses on deferred billings of $3,134 as of December 31, 2020 includes $734 as a transition date adjustment through retained earnings pursuant to the adoption of ASC 326 and $2,400 as a charge for the year ended December 31, 2020. During the nine months ended September 30, 2021, the Company recorded a release of $541 to cost and expense on account of credit losses on deferred billings. Deferred billings, net of related allowance for credit losses, are included under “other assets” in the Company's consolidated balance sheet as of December 31, 2020 and September 30, 2021.

Fair value measurements

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair value measurements

The Company measures certain financial assets and liabilities, including derivative instruments, at fair value on a recurring basis. The fair value measurements of these financial assets and liabilities were determined using the following inputs as of December 31, 2020 and September 30, 2021:


	As of December 31, 2020
	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Other Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets
Derivative instruments (Note a, c)	$	27,709	$	—	$	27,709	$	—
Deferred compensation plan assets (Note a, e)	26,832		—		—		26,832
Total	$	54,541	$	—	$	27,709	$	26,832
Liabilities
Earn-out Consideration (Note b, d)	$	8,272	$	—	$	—	$	8,272
Derivative instruments (Note b, c)	40,981		—		40,981		—
Deferred compensation plan liability (Note b, f)	26,390		—		—		26,390
Total	$	75,643	$	—	$	40,981	$	34,662


	As of September 30, 2021
	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Other Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets
Derivative instruments (Note a, c)	$	22,931	$	—	$	22,931	$	—
Deferred compensation plan assets (Note a, e)	36,306		—		—		36,306
Total	$	59,237	$	—	$	22,931	$	36,306
Liabilities
Earn-out consideration (Note b, d)	$	6,156	$	—	$	—	$	6,156
Derivative instruments (Note b, c)	22,828		—		22,828		—
Deferred compensation plan liability (Note b, f)	35,715		—		—		35,715
Total	$	64,699	$	—	$	22,828	$	41,871

(a)Included in “prepaid expenses and other current assets” and “other assets” in the consolidated balance sheets.

(b)Included in “accrued expenses and other current liabilities” and “other liabilities” in the consolidated balance sheets.

(c)The Company values its derivative instruments based on market observable inputs, including both forward and spot prices for the relevant currencies and interest rate indices for relevant interest rates. The quotes are taken from an independent market database.

6. Fair value measurements (Continued)

(d)The fair value of earn-out consideration, calculated as the present value of expected future payments to be made to the sellers of acquired businesses, was derived by estimating the future financial performance of the acquired businesses using the earn-out formula and performance targets specified in each purchase agreement and adjusting the result to reflect the Company’s estimate of the likelihood of achievement of such targets. Given the significance of the unobservable inputs, the valuations are classified in level 3 of the fair value hierarchy.

(e)Deferred compensation plan assets consist of life insurance policies held under a Rabbi Trust. Assets held in the Rabbi Trust are valued based on the cash surrender value of the insurance contract, which is determined based on the fair value of the underlying assets included in the insurance portfolio and are therefore classified within level 3 of the fair value hierarchy.

(f)The fair value of the deferred compensation plan liability is derived based on the fair value of the underlying assets in the insurance policies and is therefore classified within level 3 of the fair value hierarchy.

The following table provides a roll-forward of the fair value of earn-out consideration categorized as level 3 in the fair value hierarchy for the three and nine months ended September 30, 2020 and 2021:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,935	$	5,716	$	22,184	$	8,272
Payments made on earn-out consideration (Note a)	—		—		—		(2,556)
Change in fair value of earn-out consideration (Note b)	(3,773)		—		(4,452)		—
Others (Note c)	—		440		430		440
Closing balance	$	18,162	$	6,156	$	18,162	$	6,156

(a)Includes an interest payment on earn-out consideration in excess of the acquisition date fair value, which is included in “cash flows from operating activities” amounting to $0 for the three and nine months ended September 30, 2020 and $440 for the three and nine months ended September 30, 2021.

(b)Changes in the fair value of earn-out consideration are reported in “other operating (income) expense, net” in the consolidated statements of income.

(c)“Others” is comprised of interest expense included in “interest income (expense), net” and the impact of changes in foreign exchange reported in “foreign exchange gains (losses), net” in the consolidated statements of income. This also includes a cumulative translation adjustment reported as a component of “other comprehensive income (loss).”

The following table provides a roll-forward of the fair value of deferred compensation plan assets categorized as level 3 in the fair value hierarchy for the three and nine months ended September 30, 2020 and 2021:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,837	$	35,533	$	11,208	$	26,832
Additions (net of redemption)	639		857		10,500		6,816
Change in fair value of deferred compensation plan assets (Note a)	1,204		(84)		1,972		2,658
Closing balance	$	23,680	$	36,306	$	23,680	$	36,306

(a)Changes in the fair value of plan assets are reported in “other income (expense), net” in the consolidated statements of income.

6. Fair value measurements (Continued)

The following table provides a roll-forward of the fair value of deferred compensation liabilities categorized as level 3 in the fair value hierarchy for the three and nine months ended September 30, 2020 and 2021:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,375	$	35,034	$	10,943	$	26,390
Additions (net of redemption)	792		840		10,367		6,799
Change in fair value of deferred compensation plan liabilities (Note a)	1,085		(159)		1,942		2,526
Closing balance	$	23,252	$	35,715	$	23,252	$	35,715

(a)Changes in the fair value of deferred compensation plan liabilities are reported in “selling, general and administrative expenses” in the consolidated statements of income.

Derivative financial instruments

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative financial instruments

The Company is exposed to the risk of rate fluctuations on its foreign currency assets and liabilities and on foreign currency denominated forecasted cash flows and interest rates. The Company has established risk management policies, including the use of derivative financial instruments to hedge foreign currency assets and liabilities, foreign currency denominated forecasted cash flows and interest rate risk. These derivative financial instruments are largely deliverable, non-deliverable forward foreign exchange contracts, treasury rate locks and interest rate swaps. The Company enters into these contracts with counterparties that are banks or other financial institutions, and the Company considers the risk of non-performance by such counterparties not to be material. The forward foreign exchange contracts and interest rate swaps mature during a period of up to 39 months and the forecasted transactions are expected to occur during the same period.

The following table presents the aggregate notional principal amounts of outstanding derivative financial instruments together with the related balance sheet exposure:


	Notional principal amounts (note a)				Balance sheet exposure asset (liability) (note b)
	As of December 31, 2020		As of September 30, 2021		As of December 31, 2020		As of September 30, 2021
Foreign exchange forward contracts denominated in:
United States Dollars (sell) Indian Rupees (buy)	$	1,150,000	$	1,022,500	$	15,207	$	13,564
United States Dollars (sell) Mexican Peso (buy)	17,500		13,000		716		(130)
United States Dollars (sell) Philippines Peso (buy)	67,200		96,750		1,332		(3,078)
Euro (sell) United States Dollars (buy)	96,651		73,954		(5,659)		963
Singapore Dollars (buy) United States Dollars (sell)	10,153		10,153		66		(237)
Euro (sell) Romanian Leu (buy)	29,489		27,833		(22)		(104)
Japanese Yen (sell) Chinese Renminbi (buy)	19,230		4,431		473		603
United States Dollars (sell) Hungarian Font (buy)	30,000		21,900		904		(722)
Hungarian Font (Sell) Euro (buy)	10,444		9,857		61		(93)
Australian Dollars (sell) Indian Rupees (buy)	140,525		80,685		(7,670)		546
Pound Sterling (sell) United States Dollar (buy)	—		24,955		—		766
Interest rate swaps (floating to fixed)	488,022		467,107		(18,680)		(11,975)
					$	(13,272)	$	103

7. Derivative financial instruments (Continued)

(a)Notional amounts are key elements of derivative financial instrument agreements but do not represent the amount exchanged by counterparties and do not measure the Company’s exposure to credit, foreign exchange, interest rate or market risks. However, the amounts exchanged are based on the notional amounts and other provisions of the underlying derivative financial instrument agreements. Notional amounts are denominated in U.S. dollars.

(b)Balance sheet exposure is denominated in U.S. dollars and denotes the mark-to-market impact of the derivative financial instruments on the reporting date.

FASB guidance on derivatives and hedging requires companies to recognize all derivative instruments as either assets or liabilities at fair value in the balance sheet. In accordance with the FASB guidance on derivatives and hedging, the Company designates foreign exchange forward contracts, interest rate swaps and treasury rate locks as cash flow hedges. Foreign exchange forward contracts are entered into to cover the effects of future exchange rate variability on forecasted revenues and purchases of services, and interest rate swaps and treasury rate locks are entered into to cover interest rate fluctuation risk. In addition to this program, the Company uses derivative instruments that are not accounted for as hedges under the FASB guidance in order to hedge foreign exchange risks related to balance sheet items, such as receivables and intercompany borrowings, that are denominated in currencies other than the Company’s underlying functional currency.

The fair value of the Company’s derivative instruments and their location in the Company’s financial statements are summarized in the table below:


	Cash flow hedges				Non-designated
	As of December 31, 2020		As of September 30, 2021		As of December 31, 2020		As of September 30, 2021
Assets
Prepaid expenses and other current assets	$	16,188	$	11,700	$	5,357	$	1,200
Other assets	$	6,164	$	10,031	$	—	$	—

Liabilities
Accrued expenses and other current liabilities	$	16,387	$	13,332	$	3,785	$	1,982
Other liabilities	$	16,886	$	7,474	$	3,923	$	40

Cash flow hedges

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain (loss) on the derivative instrument is reported as a component of other comprehensive income (loss) and reclassified into earnings in the same period or periods during which the hedged transaction is recognized in the consolidated statements of income. Gains (losses) on the derivatives, representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness, are recognized in earnings as incurred.

The Company executed a treasury lock agreement for $350,000 in connection with future interest payments to be made on its senior notes issued by Genpact Luxembourg S.à r.l. (“Genpact Luxembourg”) and Genpact USA, Inc. (“Genpact USA”), both wholly-owned subsidiaries of the Company, in March 2021 (the “2021 Senior Notes”), and the treasury lock was designated as a cash flow hedge. The treasury lock agreement was terminated on March 23, 2021 and a deferred gain was recorded in accumulated other comprehensive income and is being amortized to interest expense over the life of the 2021 Senior Notes. The remaining gain to be amortized related to the treasury lock agreement as of September 30, 2021 was $733.

7. Derivative financial instruments(Continued)

In connection with cash flow hedges, the gains (losses) recorded as a component of other comprehensive income (loss) (“OCI”), and the related tax effects are summarized below:


	Three months ended September 30,
	2020						2021
	Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount		Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount
Opening balance	$	(54,335)	$	9,994	$	(44,341)	$	(7,883)	$	1,355	$	(6,528)
Net gains (losses) reclassified into statement of income on completion of hedged transactions	(3,996)		1,029		(2,967)		2,443		(526)		1,917
Changes in fair value of effective portion of outstanding derivatives, net	20,550		(3,661)		16,889		11,984		(2,278)		9,706
Gain/(loss) on cash flow hedging derivatives, net	24,546		(4,690)		19,856		9,541		(1,752)		7,789
Closing balance	$	(29,789)	$	5,304	$	(24,485)	$	1,658	$	(397)	$	1,261


	Nine months ended September 30,
	2020						2021
	Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount		Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount
Opening balance	$	(4,126)	$	(1,466)	$	(5,592)	$	(10,921)	$	1,861	$	(9,060)
Net gains (losses) reclassified into statement of income on completion of hedged transactions	(4,909)		722		(4,187)		6,361		(1,463)		4,898
Changes in fair value of effective portion of outstanding derivatives, net	(30,572)		7,492		(23,080)		18,940		(3,721)		15,219
Gain/(loss) on cash flow hedging derivatives, net	(25,663)		6,770		(18,893)		12,579		(2,258)		10,321
Closing balance	$	(29,789)	$	5,304	$	(24,485)	$	1,658	$	(397)	$	1,261

*The tax (expense) benefit includes the effect of novating certain hedging instruments as part of an intercompany transfer.

The gains or losses recognized in other comprehensive income (loss) and their effects on financial performance are summarized below:


Derivatives in Cash Flow Hedging Relationships	Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion)								Location of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion)	Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion)
	Three months ended September 30,				Nine months ended September 30,					Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021			2020		2021		2020		2021
Forward foreign exchange contracts	$	20,518	$	12,175	$	(10,609)	$	17,457	Revenue	$	62	$	416	$	3,973	$	515
Interest rate swaps	32		(191)		(19,963)		667		Cost of revenue	(1,571)		3,160		(4,833)		9,288
Treasury rate lock	—		—		—		816		Selling, general and administrative expenses	(440)		849		(1,310)		2,513
									Interest expense	(2,047)		(1,982)		(2,739)		(5,955)
	$	20,550	$	11,984	$	(30,572)	$	18,940		$	(3,996)	$	2,443	$	(4,909)	$	6,361

There were no gains (losses) recognized in income on the ineffective portion of derivatives and excluded from effectiveness testing for the three and nine months ended September 30, 2020 and 2021, respectively.

7. Derivative financial instruments(Continued)

Non-designated Hedges


		Amount of Gain (Loss) recognized in Statement of Income on Derivatives
		Three months ended September 30,				Nine months ended September 30,
Derivatives not designated as hedging instruments	Location of Gain (Loss) recognized in Statement of Income on Derivatives	2020		2021		2020		2021
Forward foreign exchange contracts (Note a)	Foreign exchange gains (losses), net	$	7,136	$	3,938	$	(6,698)	$	8,775
Forward foreign exchange contracts (Note b)	Foreign exchange gains (losses), net	—		—		3,963		—
		$	7,136	$	3,938	$	(2,735)	$	8,775

(a)These forward foreign exchange contracts were entered into to hedge fluctuations in foreign exchange rates for recognized balance sheet items such as receivables and intercompany borrowings, and were not originally designated as hedges under FASB guidance on derivatives and hedging. Realized gains (losses) and changes in the fair value of these derivatives are recorded in foreign exchange gains (losses), net in the consolidated statements of income.

(b)These forward foreign exchange contracts were initially designated as cash flow hedges under ASC guidance on derivatives and hedging. These contracts were terminated because certain forecasted transactions were no longer expected to occur and therefore hedge accounting was no longer applied. Subsequently the realized gains (losses) are recorded in foreign exchange gains (losses) net in the consolidated statements of income.

In connection with the COVID-19 pandemic, the Company has reevaluated its hedging arrangements. The Company has considered the effect of changes, if any, in both counterparty credit risk and the Company’s own non-performance risk while assessing hedge effectiveness and measuring hedge ineffectiveness. The Company believes that its hedges continue to be effective after taking into account the expected impact of the COVID-19 pandemic on the Company’s hedged transactions.

Prepaid expenses and other current assets

9 Months Ended

Sep. 30, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid expenses and other current assets

Prepaid expenses and other current assets consist of the following:


	As of December 31, 2020		As of September 30, 2021
Advance income and non-income taxes	$	73,008	$	106,192
Contract asset (Note 20)	9,035		9,942
Prepaid expenses	32,375		40,738
Derivative instruments	21,545		12,900
Employee advances	2,636		4,259
Deposits	8,774		5,169
Advances to suppliers	2,716		1,000
Others	37,319		21,398
	$	187,408	$	201,598

Property, plant and equipment, net

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Property, plant and equipment, net

The following table provides the gross and net amount of property, plant and equipment:


	As of December 31, 2020		As of September 30, 2021
Property, plant and equipment, gross	$	792,463	$	802,488
Less: Accumulated depreciation, amortization and impairment	(561,341)		(594,568)
Property, plant and equipment, net	$	231,122	$	207,920

Depreciation expense on property, plant and equipment for the nine months ended September 30, 2020 and 2021 was $50,863 and $46,305, respectively, and for the three months ended September 30, 2020 and 2021 was $17,257 and $14,131, respectively. Computer software amortization for the nine months ended September 30, 2020 and 2021 was $7,399 and $4,469, respectively, and for the three months ended September 30, 2020 and 2021 was $1,889 and $1,461, respectively. The Company recorded a write-down to certain property, plant and equipment during the three months ended September 30, 2020 and nine months ended September 30, 2020 and 2021, as described in Note 10.

Goodwill and intangible assets

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and intangible assets

The following table presents the changes in goodwill for the year ended December 31, 2020 and nine months ended September 30, 2021:


	For the year ended December 31, 2020	For the nine months ended September 30, 2021
Opening balance	1,574,466	1,695,688
Goodwill relating to acquisitions consummated during the period	123,595	—
Impact of measurement period adjustments	(5,653)	(108)
Effect of exchange rate fluctuations	3,280	(9,896)
Closing balance	1,695,688	1,685,684

The following table presents the changes in goodwill by reporting unit for the year ended December 31, 2020:


	BCMI	CGRLH	HMS	Total
Opening balance	417,213	555,130	602,123	1,574,466
Goodwill relating to acquisitions consummated during the period	2,559	52,612	68,424	123,595
Impact of measurement period adjustments	(542)	(1,372)	(3,739)	(5,653)
Effect of exchange rate fluctuations	942	1,204	1,134	3,280
Closing balance	420,172	607,574	667,942	1,695,688

10. Goodwill and intangible assets (Continued)

The following table presents the changes in goodwill by reporting unit for the nine months ended September 30, 2021:


	BCMI	CGRLH	HMS	Total
Opening balance	420,172	607,574	667,942	1,695,688
Goodwill relating to acquisitions consummated during the period	—	—	—	—
Impact of measurement period adjustments	(3)	(28)	(77)	(108)
Effect of exchange rate fluctuations	(3,061)	(3,726)	(3,109)	(9,896)
Closing balance	417,108	603,820	664,756	1,685,684

The total amount of goodwill deductible for tax purposes was $296,046 and $277,428 as of December 31, 2020 and September 30, 2021, respectively.

The Company’s intangible assets are as follows:


	As of December 31, 2020						As of September 30, 2021
	Gross carrying amount		Accumulated amortization & Impairment		Net		Gross carrying amount		Accumulated amortization & Impairment		Net
Customer-related intangible assets	$	478,189	$	359,652	$	118,537	$	474,041	$	385,494	$	88,547
Marketing-related intangible assets	96,561		61,154		35,407		96,395		73,113		23,282
Technology-related intangible assets	152,293		90,866		61,427		171,547		112,368		59,179
Intangible assets under development	23,864		2,503		21,361		—		—		—
	$	750,907	$	514,175	$	236,732	$	741,983	$	570,975	$	171,008

Amortization expenses for intangible assets acquired as part of a business combination and disclosed in the consolidated statements of income under amortization of acquired intangible assets for the nine months ended September 30, 2020 and 2021 were $31,673 and $44,624, respectively, and for the three months ended September 30, 2020 and 2021 were $10,235 and $13,898, respectively.

Amortization expenses for internally-developed and other intangible assets disclosed in the consolidated statements of income under cost of revenue and selling, general and administrative expenses for the nine months ended September 30, 2020 and 2021 were $20,932 and $18,841, respectively, and for the three months ended September 30, 2020 and 2021 were $6,896 and $6,919, respectively.

During the three and nine months ended September 30, 2020 and 2021, the Company tested for recoverability certain customer-related and technology-related intangible assets, including those under development, and certain property, plant and equipment, as a result of changes in market trends and the Company’s investment strategy, including the Company's decisions to cease certain service offerings. Based on the results of this testing, the Company determined that the carrying values of the assets tested were not recoverable, and the Company recorded complete write-downs of the carrying values of these assets amounting to $10,647 and $915 for the nine months ended September 30, 2020 and 2021, respectively, and $674 and $0 for the three months ended September 30, 2020 and 2021, respectively. These write-downs have been recorded in “other operating (income) expense, net” in the consolidated statement of income.

10. Goodwill and intangible assets (Continued)

The summary below represents the impairment charge recorded for various categories of assets during the three and nine months ended September 30, 2020 and September 30, 2021:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Technology related intangibles	$	347	$	—	$	4,878	$	205
Customer related intangibles	—		—		1,239		—
Total Intangibles	$	347	$	—	$	6,117	$	205
Property, plant and equipment	$	327	$	—	$	4,530	$	710
Total Property, plant and equipment	$	327	$	—	$	4530	$	710
Grand Total	$	674	$	—	$	10,647	$	915

Short-term borrowings	9 Months Ended
Short-term borrowings	Sep. 30, 2021
Debt Disclosure [Abstract]
Short-term borrowings	Short-term borrowings The Company has the following borrowing facilities: a.Fund-based and non-fund-based credit facilities with banks, which are available for operational requirements in the form of overdrafts, letters of credit, guarantees and short-term loans. As of December 31, 2020 and September 30, 2021, the limits available were $14,311 and $20,209, respectively, of which $7,809 and $4,206, respectively, was utilized, constituting non-funded drawdown. b.A fund-based and non-fund based revolving credit facility of $500,000, which the Company obtained through an amendment of its existing credit agreement on August 9, 2018, as described in Note 12. Prior to the amendment, the Company’s revolving credit facility was $350,000. The amended credit facility expires on August 8, 2023. The funded drawdown amount under the Company’s revolving facilities bore interest at a rate equal to LIBOR plus a margin of 1.375% as of December 31, 2020 and September 30, 2021. The unutilized amount on the revolving facilities bore a commitment fee of 0.20% as of December 31, 2020 and September 30, 2021. As of December 31, 2020 and September 30, 2021, a total of $252,347 and $2,017, respectively, was utilized, of which $250,000 and $0, respectively, constituted funded drawdown and $2,347 and $2,017, respectively, constituted non-funded drawdown. The Company’s amended credit agreement contains certain customary covenants, including a maximum leverage covenant and a minimum interest coverage ratio. During the period ended December 31, 2020 and September 30, 2021, the Company was in compliance with the financial covenants of the credit agreement.

Long-term debt

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Long-term debt

In August 2018, the Company amended its 2015 credit facility (“the 2015 Facility”), which was comprised of an $800,000 term loan and a $350,000 revolving credit facility. The amended facility is comprised of a $680,000 term loan, which represents the outstanding balance under the 2015 Facility as of the date of amendment, and a $500,000 revolving credit facility. The amended facility expires on August 8, 2023. The amendment did not result in a substantial modification of $550,814 of the outstanding term loan under the 2015 Facility. Further, as a result of the amendment, the Company extinguished the outstanding term loan under the 2015 Facility of $129,186 and obtained additional funding of $129,186, resulting in no change to the outstanding principal of the term loan under the amended facility. In connection with the amendment, the Company expensed $2,029, representing partial acceleration of the amortization of the existing unamortized debt issuance costs and an additional fee paid to the Company’s lenders related to the term loan. The overall borrowing capacity under the revolving credit facility increased from $350,000 to $500,000. The amendment of the revolving credit facility resulted in accelerated amortization of $82 relating to existing unamortized debt issuance cost. The remaining unamortized costs and an additional third-party fee paid in connection with the amendment will be amortized over the term of the amended facility, which will expire on August 8, 2023.

12. Long-term debt (Continued)

Borrowings under the amended credit facility bear interest at a rate equal to, at the election of the Company, either LIBOR plus an applicable margin equal to 1.375% per annum, compared to a margin of 1.50% under the 2015 Facility, or a base rate plus an applicable margin equal to 0.375% per annum, compared to a margin of 0.50% under the 2015 Facility, in each case subject to adjustment based on the Company’s debt ratings provided by Standard & Poor’s Rating Services and Moody’s Investors Service, Inc. Based on the Company’s election and current credit rating, the applicable interest rate is equal to LIBOR plus 1.375% per annum. The amended credit agreement restricts certain payments, including dividend payments, if there is an event of default under the credit agreement or if the Company is not, or after making the payment would not be, in compliance with certain financial covenants contained in the amended credit agreement. These covenants require the Company to maintain a net debt to EBITDA leverage ratio of below 3x and an interest coverage ratio of more than 3x. During the period ended September 30, 2021, the Company was in compliance with the terms of the credit agreement, including all of the financial covenants therein. The Company’s retained earnings are not subject to any restrictions on availability to make dividend payments to shareholders, subject to compliance with the financial covenants described above that are contained in the amended credit agreement.

As of December 31, 2020 and September 30, 2021, the amount outstanding under the term loan, net of debt amortization expense of $1,150 and $801, was $593,850 and $568,699, respectively. As of December 31, 2020 and September 30, 2021, the term loan bore interest at a rate equal to LIBOR plus a margin of 1.375% per annum.

Indebtedness under the amended credit facility is unsecured. The amount outstanding on the term loan as of September 30, 2021 requires quarterly payments of $8,500, and the balance of the loan is due and payable upon the maturity of the term loan on August 8, 2023.

The maturity profile of the term loan outstanding as of September 30, 2021, net of debt amortization expense, is as follows:


Year ended	Amount
2021	$	8,386
2022	33,564
2023	526,749
Total	$	568,699

Genpact Luxembourg S.à r.l., a wholly-owned subsidiary of the Company, issued $350,000 aggregate principal amount of 3.70% senior notes in March 2017 (the “2017 Senior Notes”), and $400,000 aggregate principal amount of 3.375% senior notes in November 2019 (the “2019 Senior Notes”). The 2017 Senior Notes and 2019 Senior Notes are fully guaranteed by the Company. The total debt issuance cost of $2,642 and $2,937 incurred in connection with the 2017 Senior Notes and 2019 Senior Notes offerings, respectively, are being amortized over the lives of the respective notes as an additional interest expense. As of December 31, 2020 and September 30, 2021, the amount outstanding under the 2017 Senior Notes, net of debt amortization expense of $658 and $264, respectively, was $349,342 and $349,736, respectively, which is payable on April 1, 2022. As of December 31, 2020 and September 30, 2021, the amount outstanding under the 2019 Senior Notes, net of debt amortization expense of $2,284 and $1,849, was $397,716 and $398,152, respectively, which is payable on December 1, 2024.

In March 2021, Genpact Luxembourg S.à r.l. and Genpact USA, Inc., both wholly-owned subsidiaries of the Company, co-issued $350,000 aggregate principal amount of 1.750% senior notes (the “2021 Senior Notes,” and together with the 2017 Senior Notes and the 2019 Senior Notes, the “Senior Notes”). The 2021 Senior Notes are fully guaranteed by the Company. The total debt issuance cost of $3,032 incurred in connection with the 2021 Senior Notes is being amortized over the life of the 2021 Senior Notes as additional interest expense. As of September 30, 2021, the amount outstanding under the 2021 Senior Notes, net of debt amortization expense of $2,723, was $347,277, which is payable on April 10, 2026.

12. Long-term debt (Continued)

The Company pays interest on (i) the 2017 Senior Notes semi-annually in arrears on April 1 and October 1 of each year, (ii) the 2019 Senior Notes semi-annually in arrears on June 1 and December 1 of each year, and (iii) the 2021 Senior Notes semi-annually in arrears on April 10 and October 10 of each year, ending on the maturity dates of April 1, 2022, December 1, 2024 and April 10, 2026, respectively. The Company, at its option, may redeem the Senior Notes at any time in whole or in part, at a redemption price equal to (i) 100% of the principal amount of the notes redeemed, together with accrued and unpaid interest on the redeemed amount, and (ii) if the notes are redeemed prior to, in the case of the 2017 Senior Notes, March 1, 2022, in the case of the 2019 Senior Notes, November 1, 2024, and in the case of the 2021 Senior Notes, March 10, 2026, a specified “make-whole” premium. The Senior Notes are subject to certain customary covenants, including limitations on the ability of the Company and certain of its subsidiaries to incur debt secured by liens, engage in certain sale and leaseback transactions and consolidate, merge, convey or transfer their assets substantially as an entirety. During the period ended September 30, 2021, the Company and its applicable subsidiaries were in compliance with the covenants. Upon certain change of control transactions, the applicable issuer or issuers will be required to make an offer to repurchase the Senior Notes at a price equal to 101% of the aggregate principal amount of the Senior Notes, plus accrued and unpaid interest. The interest rate payable on the Senior Notes is subject to adjustment if the credit rating of the Senior Notes is downgraded, up to a maximum increase of 2.0%.

A summary of the Company’s long-term debt is as follows:


	As of December 31, 2020		As of September 30, 2021
Credit facility, net of amortization expenses	$	593,850	$	568,699
3.70% 2017 Senior Notes, net of debt amortization expenses	349,342		349,736
3.375% 2019 Senior Notes, net of debt amortization expenses	397,716		398,152
1.750% 2021 Senior Notes, net of debt amortization expenses	$	—	347,277
Total	$	1,340,908	$	1,663,864
Current portion	33,537		383,293
Non-current portion	1,307,371		1,280,571
Total	$	1,340,908	$	1,663,864

Accrued expenses and other current liabilities

9 Months Ended

Sep. 30, 2021

Payables and Accruals [Abstract]

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consist of the following:


	As of December 31, 2020		As of September 30, 2021
Accrued expenses	$	150,390	$	153,186
Accrued employee cost	286,399		250,136
Earn-out consideration	2,651		3,051
Statutory liabilities	104,768		68,203
Retirement benefits	1,967		1,301
Compensated absences	28,635		27,972
Derivative instruments	20,172		15,314
Contract liabilities (Note 20)	154,717		150,322
Finance lease liability	18,066		21,348
Other liabilities	39,004		45,147
	$	806,769	$	735,980

Other liabilities

9 Months Ended

Sep. 30, 2021

Other Liabilities Disclosure [Abstract]

Other liabilities

Other liabilities consist of the following:


	As of December 31, 2020		As of September 30, 2021
Accrued employee cost	$	19,797	$	22,154
Earn-out consideration	5,621		3,105
Retirement benefits	11,947		13,123
Compensated absences	47,656		52,774
Derivative instruments	20,809		7,514
Contract liabilities (Note 20)	68,760		84,170
Finance lease liability	30,958		20,407
Others	32,850		44,495
	$	238,398	$	247,742

Employee benefit plans

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Employee benefit plans

The Company has employee benefit plans in the form of certain statutory and other programs covering its employees.

Defined benefit plans

In accordance with Indian law, the Company maintains a defined benefit retirement plan covering substantially all of its Indian employees. In accordance with Mexican law, the Company provides termination benefits to all of its Mexican employees. In addition, certain of the Company’s subsidiaries in the Philippines, Israel and Japan sponsor defined benefit retirement programs.

Net defined benefit plan costs for the three and nine months ended September 30, 2020 and 2021 include the following components:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Service costs	$	2,733	$	3,454	$	8,402	$	10,528
Interest costs	1,267		1,363		3,898		4,135
Amortization of actuarial loss	615		558		1,883		1,704
Expected return on plan assets	(1,108)		(1,534)		(3,406)		(4,605)
Net defined benefit plan costs	$	3,507	$	3,841	$	10,777	$	11,762

15. Employee benefit plans (Continued)

Defined contribution plans

During the three and nine months ended September 30, 2020 and 2021, the Company contributed the following amounts to defined contribution plans in various jurisdictions:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
India	$	7,289	$	9,637	$	22,362	$	27,445
U.S.	4,654		5,020		13,935		15,508
U.K.	4,547		5,034		13,977		14,352
China	4,503		6,362		11,243		18,433
Other regions	3,189		3,913		8,806		11,155
Total	$	24,182	$	29,966	$	70,323	$	86,893

Deferred compensation plan

On July 1, 2018, Genpact LLC, a wholly-owned subsidiary of the Company, adopted an executive deferred compensation plan (the “Plan”). The Plan provides a select group of U.S.-based members of Company management with the opportunity to defer from 1% to 80% of their base salary and from 1% to 100% of their qualifying bonus compensation (or such other minimums or maximums as determined by the Plan administrator from time to time) pursuant to the terms of the Plan. Participant deferrals are 100% vested at all times. The Plan also allows for discretionary supplemental employer contributions by the Company, in its sole discretion, which will be subject to a two-year vesting schedule (50% vesting on the one-year anniversary of approval of the contribution and 50% vesting on the second year anniversary of approval of the contribution) or such other vesting schedule as determined by the Company. However, no such contribution has been made by the Company to date.

The Plan also provides an option for participants to elect to receive deferred compensation and earnings thereon on either fixed date(s) no earlier than 2 years following the applicable Plan year (or end of the applicable performance period for performance-based bonus compensation) or following a separation from service, in each case either in a lump sum or in annual installments over a term of up to 15 years. Participants can elect to change or re-defer their rights to receive the deferred compensation until the 10th anniversary following their separation from service, subject to fulfillment of certain conditions. Each Plan participant’s compensation deferrals are credited or debited with notional investment gains and losses equal to the performance of selected hypothetical investment funds offered under the Plan and elected by the participant.

The Company has investments in funds held in Company-owned life insurance policies which are held in a Rabbi Trust that are classified as trading securities. Management determines the appropriate classification of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. The securities are classified as trading securities because they are held for resale in anticipation of short-term fluctuations in market prices. The trading securities are stated at fair value.

The liability for the deferred compensation plan was $26,390 and $35,715 as of December 31, 2020 and September 30, 2021, respectively, and is included in “accrued expenses and other current liabilities” and “other liabilities” in the consolidated balance sheets.

In connection with the administration of the Plan, the Company has purchased company-owned life insurance policies insuring the lives of certain employees. The cash surrender value of these policies was $26,832 and $36,306 as of December 31, 2020 and September 30, 2021, respectively. The cash surrender value of these insurance policies is included in “other assets” in the consolidated balance sheets.

15. Employee benefit plans (Continued)During the nine months ended September 30, 2020 and 2021, the change in the fair value of Plan assets was $1,972 and $2,658, respectively, and for the three months ended September 30, 2020 and 2021 was $1,204 and $(84), respectively, which is included in “other income (expense), net,” in the consolidated statements of income. During the nine months ended September 30, 2020 and 2021, the change in the fair value of deferred compensation liabilities was $1,942 and $2,526, respectively, and for the three months ended September 30, 2020 and 2021 was $1,085 and $(159), respectively, which is included in “selling, general and administrative expenses.”

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Stock-based compensation

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock-based compensation

The Company has issued options under the Genpact Limited 2007 Omnibus Incentive Compensation Plan (the “2007 Omnibus Plan”) and the Genpact Limited 2017 Omnibus Incentive Compensation Plan (the “2017 Omnibus Plan”) to eligible persons, including employees, directors and certain other persons associated with the Company.

Under the 2007 Omnibus Plan, shares underlying options forfeited, expired, terminated or cancelled under any of the Company’s predecessor plans were added to the number of shares otherwise available for grant under the 2007 Omnibus Plan. The 2007 Omnibus Plan was amended and restated on April 11, 2012 to increase the number of common shares authorized for issuance by 5,593,200 shares to 15,000,000 shares. Further, during the year ended December 31, 2012, the number of common shares authorized for issuance under the 2007 Omnibus Plan was increased by 8,858,823 shares as a result of a one-time adjustment to outstanding unvested share awards in connection with a special dividend payment.

On May 9, 2017, the Company’s shareholders approved the adoption of the 2017 Omnibus Plan, pursuant to which 15,000,000 Company common shares are available for issuance. The 2017 Omnibus Plan was amended and restated on April 5, 2019 to increase the number of common shares authorized for issuance by 8,000,000 shares to 23,000,000 shares. No grants may be made under the 2007 Omnibus Plan after the date of adoption of the 2017 Omnibus Plan. Grants that were outstanding under the 2007 Omnibus Plan as of the date of Company’s adoption of the 2017 Omnibus Plan remain subject to the terms of the 2007 Omnibus Plan.

Stock-based compensation costs relating to the foregoing plans during the nine months ended September 30, 2020 and September 30, 2021 were $54,835 and $57,554, respectively, and for the three months ended September 30, 2020 and September 30, 2021 were $19,180 and $21,150, respectively. These costs have been allocated to “cost of revenue” and “selling, general and administrative expenses.”

Stock options

All options granted under the 2007 and 2017 Omnibus Plans are exercisable into common shares of the Company, have a contractual period of ten years and vest over three to five years unless specified otherwise in the applicable award agreement. The Company recognizes compensation cost over the vesting period of the option.

Compensation cost is determined at the date of grant by estimating the fair value of an option using the Black-Scholes option-pricing model.

The following table shows the significant assumptions used in determining the fair value of options granted in the nine months ended September 30, 2020 and September 30, 2021. The Company granted options covering 431,924 shares in the nine months ended September 30, 2020.


	Nine months ended September 30,2020		Nine months ended September 30,2021
Dividend yield	0.89	%	0.84	-	1.08	%
Expected life (in months)	84				84
Risk-free rate of interest	1.50	%	1.12	-	1.37	%
Volatility	20.96	%	26.05	-	26.18	%

16. Stock-based compensation (Continued)

A summary of stock option activity during the nine months ended September 30, 2021 is set out below:


	Nine Months Ended September 30, 2021
	Shares arising out of options	Weighted average exercise price	Weighted average remaining contractual life (years)	Aggregate intrinsic value
Outstanding as of January 1, 2021	7,347,241	26.41	5.7	—
Granted	1,831,180	43.98	—	—
Forfeited	(25,000)	31.50	—	—
Expired	—	—	—	—
Exercised	(1,020,125)	20.50	—	26,085
Outstanding as of September 30, 2021	8,133,296	31.10	6.3	134,565
Vested as of September 30, 2021 and expected to vest thereafter (Note a)	7,485,096	30.24	6.3	130,045
Vested and exercisable as of September 30, 2021	3,242,333	23.94	3.7	76,436
Weighted average grant date fair value of grants during the period	11.35

(a)Options expected to vest reflect an estimated forfeiture rate.

As of September 30, 2021, the total remaining unrecognized stock-based compensation cost for options expected to vest amounted to $26,843, which will be recognized over the weighted average remaining requisite vesting period of 3.3 years.

Restricted share units

The Company has granted restricted share units (“RSUs”) under the 2007 and 2017 Omnibus Plans. Each RSU represents the right to receive one common share. The fair value of each RSU is the market price of one common share of the Company on the date of the grant. The RSUs granted to date have graded vesting schedules of three months to four years. The compensation expense is recognized on a straight-line basis over the vesting term. A summary of RSU activity during the nine months ended September 30, 2021 is set out below:


	Nine Months Ended September 30, 2021
	Number of Restricted Share Units	Weighted Average Grant Date Fair Value
Outstanding as of January 1, 2021	860,308	36.44
Granted	466,702	44.00
Vested (Note a)	(351,926)	31.01
Forfeited	(54,514)	37.39
Outstanding as of September 30, 2021	920,570	42.29
Expected to vest (Note b)	797,265

(a)351,926 RSUs that vested during the period were net settled upon vesting by issuing 230,284 shares (net of minimum statutory tax withholding).

(b)The number of RSUs expected to vest reflects the application of an estimated forfeiture rate.

16. Stock-based compensation (Continued)

34,092 RSUs that vested in the year ended December 31, 2019 were issued during the nine months ended September 30, 2021.

As of September 30, 2021, the total remaining unrecognized stock-based compensation cost related to RSUs amounted to $21,417, which will be recognized over the weighted average remaining requisite vesting period of 2.4 years.

Performance units

The Company also grants stock awards in the form of performance units (“PUs”) and has granted PUs under both the 2007 and 2017 Omnibus Plans.

Each PU represents the right to receive one common share at a future date based on the Company’s performance against specified targets. PUs granted to date have vesting schedules of six months to three years. The fair value of each PU is the market price of one common share of the Company on the date of grant and assumes that performance targets will be achieved. PUs granted under the plans are subject to cliff vesting. The compensation expense for such awards is recognized on a straight-line basis over the vesting terms. During the performance period, the Company’s estimate of the number of shares to be issued is adjusted upward or downward based upon the probability of achievement of the performance targets. The ultimate number of shares issued and the related compensation cost recognized is based on a comparison of the final performance metrics to the specified targets.

A summary of PU activity during the nine months ended September 30, 2021 is set out below:


	Nine months ended September 30, 2021
	Number of Performance Units	Weighted Average Grant Date Fair Value	Maximum Shares Eligible to Receive
Outstanding as of January 1, 2021	4,876,196	34.56	4,876,196
Granted	1,335,917	44.04	2,671,834
Vested (Note a)	(1,784,140)	30.66	(1,784,140)
Forfeited	(201,008)	39.76	(239,736)
Adjustment upon final determination of level of performance goal achievement (Note b)	9,625	42.48	9,625
Outstanding as of September 30, 2021	4,236,590	38.97	5,533,779
Expected to vest (Note c)	4,018,807

(a)1,784,140 PSUs that vested during the period were net settled upon vesting by issuing 1,102,440 shares (net of minimum statutory tax withholding).

(b)Represents an adjustment made in March 2021 to the number of shares subject to the PUs granted in 2020 upon certification of the level of achievement of the performance targets underlying such awards.

(c)The number of PUs expected to vest reflects the application of an estimated forfeiture rate.

As of September 30, 2021, the total remaining unrecognized stock-based compensation cost related to PUs amounted to $65,843, which will be recognized over the weighted average remaining requisite vesting period of 1.9 years.

Employee Stock Purchase Plan (ESPP)

On May 1, 2008, the Company adopted the Genpact Limited U.S. Employee Stock Purchase Plan and the Genpact Limited International Employee Stock Purchase Plan (together, the “ESPP”). In April 2018, these plans were amended and restated, and their terms were extended to August 31, 2028.

16. Stock-based compensation (Continued)

The ESPP allows eligible employees to purchase the Company’s common shares through payroll deductions at 90% of the closing price of the Company’s common shares on the last business day of each purchase interval. The dollar amount of common shares purchased under the ESPP may not exceed 15% of the participating employee’s base salary, subject to a cap of $25 per employee per calendar year. With effect from September 1, 2009, the offering periods commence on the first business day in March, June, September and December of each year and end on the last business day of the subsequent May, August, November and February. 4,200,000 common shares have been reserved for issuance in the aggregate over the term of the ESPP.

During the nine months ended September 30, 2020 and 2021, 241,953 and 216,378 common shares, respectively, were issued under the ESPP.

The ESPP is considered compensatory under the FASB guidance on Compensation-Stock Compensation.

The compensation expense for the ESPP is recognized in accordance with the FASB guidance on Compensation-Stock Compensation. The compensation expense for the ESPP during the nine months ended September 30, 2020 and 2021 was $983 and $1,050, respectively, and for the three months ended September 30, 2020 and 2021 was $307 and $335, respectively, and has been allocated to cost of revenue and selling, general and administrative expense

Capital stock	9 Months Ended
Capital stock	Sep. 30, 2021
Equity [Abstract]
Capital stock	Capital stock Share repurchases The Board of Directors of the Company (the “Board”) has authorized repurchases of up to $1,750,000 under the Company’s existing share repurchase program. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be purchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. During the nine months ended September 30, 2020 and 2021, the Company repurchased 1,781,978 and 3,592,409 of its common shares, respectively, on the open market at a weighted average price of $41.28 and $40.96 per share, respectively, for an aggregate cash amount of $73,552 and $147,152, respectively. All repurchased shares have been retired. The Company records repurchases of its common shares on the settlement date of each transaction. Shares purchased and retired are deducted to the extent of their par value from common stock and from retained earnings for the excess over par value. Direct costs incurred to acquire the shares are included in the total cost of the shares purchased. For the nine months ended September 30, 2020 and 2021, retained earnings were reduced by the direct costs related to share repurchases of $36 and $72, respectively. $489,846 remained available for share repurchases under the Company’s existing share repurchase program as of September 30, 2021. This repurchase program does not obligate the Company to acquire any specific number of shares and does not specify an expiration date. Dividend On February 6, 2020, the Company announced that its Board had approved a 15% increase in its quarterly cash dividend to $0.0975 per share, up from $0.085 per share in 2019, representing an annual dividend of $0.39 per common share, up from $0.34 per share in 2019, payable to holders of the Company’s common shares. On March 18, 2020, June 26, 2020 and September 23, 2020, the Company paid a dividend of $0.0975 per share, amounting to $18,543, $18,595 and $18,637 in the aggregate, to shareholders of record as of March 9, 2020, June 11, 2020 and September 11, 2020 respectively. 17. Capital stock (Continued)On February 9, 2021, the Company announced that its Board had approved a 10% increase in its quarterly cash dividend to $0.1075 per share, up from $0.0975 per share in 2020, representing a planned annual dividend of $0.43 per common share, up from $0.39 per share in 2020, payable to holders of the Company’s common shares. On March 19, 2021, June 23, 2021 and September 24, 2021, the Company paid a dividend of $0.1075 per share, amounting to $20,115, $20,133 and $20,213 in the aggregate, to shareholders of record as of March 10, 2021, June 11, 2021 and September 10, 2021, respectively

Earnings per share

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Earnings per share

The Company calculates earnings per share in accordance with FASB guidance on earnings per share. Basic and diluted earnings per common share give effect to the change in the number of Company common shares outstanding. The calculation of basic earnings per common share is determined by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the respective periods. The potentially dilutive shares, consisting of outstanding options on common shares, restricted share units, common shares to be issued under the ESPP and performance units, have been included in the computation of diluted net earnings per share and the number of weighted average shares outstanding, except where the result would be anti-dilutive.

The number of shares subject to stock awards outstanding but not included in the computation of diluted earnings per common share because their effect was anti-dilutive is 1,432,789 and 1,698,735 for the nine months ended September 30, 2020 and 2021, respectively, and 675,214 and 1,556,671 for the three months ended September 30, 2020 and 2021, respectively.


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Net income	$	85,435	$	102,386	$	233,294	$	296,363
Weighted average number of common shares used in computing basic earnings per common share	190,949,108		187,856,026		190,705,671		187,945,234
Dilutive effect of stock-based awards	5,706,032		5,303,903		5,394,396		4,940,018
Weighted average number of common shares used in computing dilutive earnings per common share	196,655,140		193,159,929		196,100,067		192,885,252
Earnings per common share
Basic	$	0.45	$	0.55	$	1.22	$	1.58
Diluted	$	0.43	$	0.53	$	1.19	$	1.54

Segment reporting

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Segment reporting

The Company manages various types of business process and transformation services in an integrated manner for clients in various industries and geographic locations. The Company's operating segments are significant strategic business units that align its products and services with how it manages its business, approaches key markets and interacts with its clients.

The Company’s reportable segments are as follows: (1) Banking, Capital Markets and Insurance (“BCMI”); (2) Consumer Goods, Retail, Life Sciences and Healthcare (“CGRLH”); and (3) High Tech, Manufacturing and Services (“HMS”).

19. Segment reporting (Continued)

The Company’s Chief Executive Officer, who has been identified as the Chief Operating Decision Maker ("CODM"), reviews operating segment revenue, which is a GAAP measure, and operating segment adjusted income from operations, which is a non-GAAP measure. The Company does not allocate and therefore the CODM does not evaluate stock based compensation expenses, amortization and impairment of acquired intangible assets, foreign exchange gain/(losses), interest income/(expense), restructuring expenses, acquisition related expenses, other income/(expense), or income taxes by segment.

The Company’s operating assets and liabilities pertain to multiple segments. The Company manages assets and liabilities on a total company basis, not by operating segment, and therefore asset and liabilities information and capital expenditures by operating segment are not presented to the CODM and are not reviewed by the CODM.

Revenues and adjusted income from operations for each of the Company’s segments for the three months ended September 30, 2020 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others#	Total
Revenues, net	283,806	318,290	339,008	941,104	(5,581)	935,523
Adjusted income from operations	38,771	47,847	60,990	147,608	12,365	159,973
Stock-based compensation						(19,487)
Amortization and impairment of acquired intangible assets (other than included above)						(9,995)
Foreign exchange gains (losses), net						(2,402)
Interest income (expense), net						(12,757)
Restructuring expenses (refer to note (a) below and note 26)						(4,889)
Income tax expense						(25,008)
Net income						85,435

(a) We do not allocate these charges to individual segments in internal management reports used by the CODM. Accordingly, such expenses are included in our segment reporting as “unallocated costs.”

#Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead, unallocated allowance for credit losses and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.

19. Segment reporting (Continued)

Revenues and adjusted income from operations for each of the Company’s segments for the three months ended September 30, 2021 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others*	Total
Revenues, net	258,521	388,069	366,741	1,013,331	2,406	1,015,737
Adjusted income from operations	32,514	63,681	68,263	164,458	4,484	168,942
Stock-based compensation						(21,485)
Amortization and impairment of acquired intangible assets (other than included above)						(13,688)
Foreign exchange gains (losses), net						2,733
Interest income (expense), net						(12,765)
Income tax expense						(21,351)
Net income						102,386

*Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.

Revenues and adjusted income from operations for each of the Company’s segments for the nine months ended September 30, 2020 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others##	Total
Revenues, net	805,807	930,203	1,045,920	2,781,930	(23,121)	2,758,809
Adjusted income from operations	88,888	134,691	178,741	402,320	38,873	441,193
Stock-based compensation						(55,818)
Amortization and impairment of acquired intangible assets (other than included above)						(32,218)
Foreign exchange gains (losses), net						11,611
Interest income (expense), net						(38,072)
Restructuring expenses (refer to note (b) below and note 26)						(26,547)
Income tax expense						(66,855)
Net income						233,294

(b) We do not allocate these charges to individual segments in internal management reports used by the CODM. Accordingly, such expenses are included in our segment reporting as “unallocated costs.”

##Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead, unallocated allowances for credit losses and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.

19. Segment reporting (Continued)

Revenues and adjusted income from operations for each of the Company’s segments for the nine months ended September 30, 2021 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others**	Total
Revenues, net	750,589	1,101,182	1,081,767	2,933,538	16,396	2,949,934
Adjusted income from 0perations	98,972	184,647	203,915	487,534	21,087	508,621
Stock-based compensation						(58,604)
Amortization and impairment of acquired intangible assets (other than included above)						(43,977)
Foreign exchange gains (losses), net						11,529
Interest income (expense), net						(38,198)
Income tax expense						(83,008)
Net income						296,363

**Revenues, net for “Others” primarily represents the impact of foreign exchange fluctuations, which is not allocated to the Company’s segments for management’s internal reporting purposes. Adjusted income from operations for “Others” primarily represents the impact of over-absorption of overhead and foreign exchange fluctuations, which are not allocated to the Company’s segments for management’s internal reporting purposes.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

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+ Details

Net revenues

9 Months Ended

Sep. 30, 2021

Revenues [Abstract]

Net revenues

Disaggregation of revenue

In the following table, the Company’s revenue is disaggregated by customer classification:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Global clients	$	824,175	$	920,628	$	2,409,047	$	2,667,036
GE	111,348		95,109		349,762		282,898
Total net revenues	$	935,523	$	1,015,737	$	2,758,809	$	2,949,934

All revenue from GE is included in revenue from the HMS segment, and the remainder of revenue from the HMS segment consists of revenue from Global Clients. All of the segment revenue from both the BCMI and CGRLH segments consists of revenue from Global Clients. Refer to Note 19 for details on net revenues attributable to each of the Company’s segments.

The Company has evaluated the impact of the COVID-19 pandemic on the Company’s net revenues for the three and nine months ended September 30, 2020 and 2021, respectively, to ensure that revenue is recognized after considering all impacts to the extent currently known. Impacts observed include constraints on the Company’s ability to render services, whether due to full or partial shutdowns of the Company’s facilities or significant travel restrictions, penalties relating to breaches of service level agreements, and contract terminations or contract performance delays initiated by clients. The Company’s net revenues for the three and nine months ended September 30, 2020 were lower than expected before the onset of the pandemic, primarily due to delays in obtaining client approvals to shift to a virtual, work-from-home operating environment, whether as a result of regulatory constraints or due to privacy or security concerns. The COVID-19 pandemic did not have a significant impact on the Company’s net revenues for the three and nine months ended September 30, 2021. Due to the nature of the pandemic, the Company will continue to monitor developments to identify significant uncertainties relating to revenue in future periods.

Contract balances

Accounts receivable include amounts for services that the Company has performed but for which payment has not been received. The Company typically follows a 30-day billing cycle and, as such, at any point in time may have accrued up to 30 days of revenues that have not been billed. The Company has determined that in instances where the timing of revenue recognition differs from the timing of invoicing, the related contracts generally do not include a significant financing component. Refer to Note 5 for details on the Company’s accounts receivable and allowance for credit losses.

The following table shows the details of the Company’s contract balances:


	As of December 31, 2020		As of September 30, 2021
Contract assets (Note a)	$	15,805	$	15,973
Contract liabilities (Note b)
Deferred transition revenue	$	130,804	$	156,308
Advance from customers	$	92,673	$	78,184

(a)Included in "prepaid expenses and other current assets" and "other assets" in the consolidated balance sheet.

(b)Included in "accrued expenses and other current liabilities" and "other liabilities" in the consolidated balance sheet.

20. Net revenues (Continued)

Contract assets represent the contract acquisition fees or other upfront fees paid to a customer. Such costs are amortized over the expected period of benefit and recorded as an adjustment to the transaction price and deducted from revenue. The Company’s assessment did not indicate any significant impairment losses on its contract assets for the periods presented.

Contract liabilities include that portion of revenue for which payments have been received in advance from customers. The Company also defers revenues attributable to certain process transition activities for which costs have been capitalized by the Company as contract fulfillment costs. Consideration received from customers, if any, relating to such transition activities is also included as part of contract liabilities. The contract liabilities are included within “Accrued expenses and other current liabilities” and “Other liabilities” in the unaudited consolidated balance sheets. The revenues are recognized as (or when) the performance obligation is fulfilled under the contract with the customer.

Changes in the Company’s contract asset and liability balances during the three and nine months ended September 30, 2020 and 2021 were a result of normal business activity and not materially impacted by any other factors.

Revenue recognized during the three months ended September 30, 2020 and 2021 that was included in the Company's contract liabilities balance at the beginning of the period was $51,201 and $60,756, respectively.

Revenue recognized during the nine months ended September 30, 2020 and 2021 that was included in the Company's contract liabilities balance at the beginning of the period was $83,189 and $128,628, respectively.

The following table includes estimated revenue expected to be recognized in the future related to remaining performance obligations as of September 30, 2021:


Particulars	Total		Less than 1 year		1-3 years		3-5 years		After 5 years
Transaction price allocated to remaining performance obligations	$	234,492	$	150,322	$	67,690	$	13,997	$	2,483

The following table provides details of the Company’s contract cost assets:


	Three months ended September 30,								Nine months ended September 30,
	2020				2021				2020				2021
Particulars	Sales incentive programs		Transition activities		Sales incentive programs		Transition activities		Sales incentive programs		Transition activities		Sales incentive programs		Transition activities
Opening balance	$	32,182	$	178,570	$	31,559	$	210,747	$	35,366	$	170,132	$	33,390	$	192,507
Closing balance	30,047		181,747		31,058		209,320		30,047		181,747		31,058		209,320
Amortization	6,094		17,935		5,041		23,028		14,329		50,397		14,576		58,644

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-URI http://asc.fasb.org/topic&trid=49130388

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-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Other operating (income) expense, net

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Other operating (income) expense, net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Write-down of intangible assets and property, plant and equipment*	$	674	$	—	$	10,647	$	915
Write-down of operating right-of-use assets and other assets*	—		—		10,244		—
Other operating (income) expense	(4,192)		(93)		(5,900)		(1,132)
Other operating (income) expense, net	$	(3,518)	$	(93)	$	14,991	$	(217)

*See note 26 for additional information about other operating (income) expense, net for the three and nine months ended September 30, 2020.

Interest income (expense), net

9 Months Ended

Sep. 30, 2021

Banking and Thrift, Interest [Abstract]

Interest income (expense), net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Interest income	$	1,828	$	2,068	$	5,229	$	4,544
Interest expense	(14,585)		(14,833)		(43,301)		(42,742)
Interest income (expense), net	$	(12,757)	$	(12,765)	$	(38,072)	$	(38,198)

Income taxes

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Income taxes

The Company determines its tax provision for interim periods using an estimate of its annual effective tax rate adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if its estimated tax rate changes, the Company makes a cumulative adjustment.

The Company’s effective tax rate (“ETR”) was 21.9% for the nine months ended September 30, 2021, down from 22.3% for the nine months ended September 3o, 2020.

The Company’s ETR was 17.3% for the three months ended September 30, 2021, down from 22.6% for the three months ended September 30, 2020. The decrease in the Company’s ETR is primarily due to the recording of interest income received on tax refunds in India and certain other discrete benefits recorded in the three months ended September 30, 2021.

As of December 31, 2020, the Company had unrecognized tax benefits amounting to $34,300, which, if recognized, would impact the Company’s ETR.

The following table summarizes activities related to the Company’s unrecognized tax benefits for uncertain tax positions for the nine months ended September 30, 2021:


	Nine months ended September 30,2021
Opening balance at January 1	$	34,300
Increase related to prior year tax positions, including recorded in acquisition accounting	686
Decrease related to settlements with tax authorities	(5,640)
Decrease related to prior year tax position due to lapse of applicable statute of limitation	(175)
Effect of exchange rate changes	(786)
Closing balance at September 30	$	28,385

23. Income taxes (Continued)

The Company’s unrecognized tax benefits as of September 30, 2021 amounted to $28,385, which, if recognized, would impact the Company’s ETR.

As of December 31, 2020 and September 30, 2021, the Company had accrued approximately $6,369 and $2,883, respectively, in interest and $900 and $869, respectively, for penalties relating to unrecognized tax benefits.

During the year ended December 31, 2020 and the nine months ended September 30, 2021, the Company recognized approximately $662 and $(3,400), respectively, in interest on unrecognized tax benefits.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Other income (expense), net

9 Months Ended

Sep. 30, 2021

Other Nonoperating Income (Expense) [Abstract]

Other income (expense), net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Other income (expense)	$	960	$	1,480	$	946	$	8,966
Other income (expense), net	$	960	$	1,480	$	946	$	8,966

Commitments and contingencies	9 Months Ended
Commitments and contingencies	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingencies	Commitments and contingencies Capital commitments As of December 31, 2020 and September 30, 2021, the Company has committed to spend $5,128 and $9,609, respectively, under agreements to purchase property, plant and equipment. This amount is net of capital advances paid in respect of these purchases. Bank guarantees The Company has outstanding bank guarantees and letters of credit amounting to $10,156 and $6,223 as of December 31, 2020 and September 30, 2021, respectively. Bank guarantees are generally provided to government agencies and excise and customs authorities for the purpose of maintaining a bonded warehouse. These guarantees may be revoked if the government agencies suffer any losses or damages through the breach of any of the covenants contained in the agreements governing such guarantees. Other commitments Certain units of the Company’s Indian subsidiaries are established as Software Technology Parks of India units or Special Economic Zone (“SEZ”) units under the relevant regulations issued by the Government of India. These units are exempt from customs and other duties on imported and indigenous capital goods, stores and spares. SEZ units are also exempt from the Goods and Services Tax (“GST”) that was introduced in India in 2017. The Company has undertaken to pay taxes and duties, if any, in respect of capital goods, stores, spares and services consumed duty-free, in the event that certain terms and conditions are not fulfilled. Contingency In February 2019, there was a judicial pronouncement in India with respect to defined contribution benefit payments interpreting certain statutory defined contribution obligations of employees and employers. It is not currently clear whether the interpretation set out in the pronouncement has retrospective application. 25. Commitments and contingencies (Continued) If applied retrospectively, the interpretation would result in an increase in contributions payable by the Company for past periods for certain of its India-based employees. There are numerous interpretative challenges concerning the retrospective application of the judgment. Due to such challenges and a lack of interpretive guidance, and based on legal advice the Company has obtained on the matter, it is currently impracticable to reliably estimate the timing and amount of any payments the Company may be required to make. Accordingly, the Company plans to obtain further clarity and will evaluate the amount of a potential provision, if any. The Indian taxing authorities (“ITA”) have initiated proceedings to examine the availability of the tax exemption claimed in respect of exports of services and related refunds under the Indian Goods and Services (“GST”) tax regime and the previous service tax regime. In the second quarter of 2020, the ITA began to challenge or reject the Company’s Indian GST and service tax refunds in certain Indian states. In total, refunds of $21,727 have been denied or challenged by the ITA and additional refunds may be denied. The Company is pursuing appeals of the denied refunds before relevant appellate authorities. The Company had requested these refunds pursuant to the tax exemption available for exports under the previous service tax regime as well as the current GST regime in respect of services performed by the Company in India for affiliates and clients outside of India. In denying the refunds, the ITA have taken the position that the services provided are local services, which interpretation, if correct, would make the service tax and GST exemption on exports unavailable to the Company in respect of such services. Additional potentially material challenges and assessments may result from ongoing proceedings related to service tax recovery. The Company believes that the denial of the refunds claimed pursuant to the service tax and GST exemption is incorrect and that the risk that the liability will materialize is remote. The Government of India recently issued an administrative circular on the GST matter that supports the Company’s position, and the Company believes that the ITA will reverse their previous orders denying refunds owed to the Company. Accordingly, no reserve has been provided as of September 30, 2021. An affiliate of the Company in India received an assessment order in 2016 seeking to assess tax amounting to $110,155 (including interest to the date of the order) on certain transactions that occurred in 2013. This amount excludes penalty or interest accrued since the date of the order. The Company filed an appeal against this assessment order with the Commissioner Income Tax (Appeals), the first tax appellant authority in India, which ruled against the Company. Subsequently, the Company filed an appeal with the Income Tax Appellate Tribunal of India (the “Tribunal”). The Tribunal has accepted the legal arguments raised by the Company and the assessment order has been cancelled. Certain taxes paid under protest were refunded with interest in the three months ended September 30, 2021. The balance, amounting to $26,839, is yet to be refunded to the Company. The Indian tax authorities may appeal the order of the Tribunal before higher appellate authorities. Based on its evaluation of the facts underlying the transaction and legal advice received, the Company believes that it is more likely than not that this transaction would not be subject to tax liability in India. Accordingly, no reserve has been provided as of September 30, 2021. In September 2020, the Indian Parliament approved the Code on Social Security, 2020 (the “Code”), which will impact the Company’s contributions to its defined contribution and defined benefit plans for employees based in India. The date the changes will take effect is not yet known and the rules for quantifying the financial impact have not yet been published. The Company will evaluate the impact of the Code on the Company in its financial statements for the period in which the Code becomes effective and the related rules are published.

Restructuring	9 Months Ended
Restructuring	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring	RestructuringIn the second quarter of 2020, due to the impact of the COVID-19 pandemic on the Company’s current and expected future revenues, the Company recorded a $21,658 restructuring charge primarily relating to the abandonment of leased office premises and employee severance charges. In the third quarter of 2020, the Company recorded an additional charge of $4,889 relating to employee severance charges. 26. Restructuring (Continued) Of the total recorded restructuring charges of $26,547, $11,152 was a non-cash charge (including $908 related to writing down certain property, plant and equipment) recorded as other operating expense, which pertains to the abandonment of various leased office premises as a result of the Company’s consolidation of underutilized office premises due to lower demand or shifting to a work-from-home model. The Company made efforts to sublease certain office premises instead of abandoning them, but due to the COVID-19 pandemic and the related widespread adoption of work-from-home practices by many businesses worldwide, the Company has been unable to sublease such premises to date and the Company believes it is unlikely that it will be able to sublease such premises in the foreseeable future. The Company also recorded a severance charge of $15,395 in personnel expense as a result of a focused reduction in its workforce, which has been subsequently settled. No further restructuring costs were incurred related to this restructuring plan since the third quarter of 2020.

Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Dividend On October 14, 2021, the Company announced that its Board of Directors has declared a dividend for the fourth quarter of 2021 of $0.1075 per common share, which is payable on December 22, 2021 to shareholders of record as of the close of business on December 10, 2021. The declaration of any future dividends will be at the discretion of the Board of Directors and subject to Bermuda and other applicable laws.

Summary of significant accounting policies (Policies)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Basis of preparation and principles of consolidation

(a) Basis of preparation and principles of consolidation

Use of estimates

(b) Use of estimatesThe preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements. Significant items subject to such estimates and assumptions include the useful lives of property, plant and equipment, intangible assets and goodwill, revenue recognition, allowance for credit losses, valuation allowances for deferred tax assets, the valuation of derivative financial instruments, the measurement of lease liabilities and right-of-use (“ROU”) assets, measurements of stock-based compensation, assets and obligations related to employee benefits, the nature and timing of the satisfaction of performance obligations, the standalone selling price of performance obligations, variable consideration, other obligations for revenue recognition, income tax uncertainties and other contingencies. Management believes that the estimates used in the preparation of the consolidated financial statements are reasonable, and management has made assumptions about the possible effects of the ongoing COVID-19 pandemic on critical and significant accounting estimates. Although these estimates and assumptions are based upon management’s best knowledge of current events and actions, actual results could differ from these estimates. Any changes in estimates are adjusted prospectively in the Company’s consolidated financial statements.

Business combinations

Goodwill

Intangible assets


Customer-related intangible assets	1	-	11 years
Marketing-related intangible assets	1	-	10 years
Technology-related intangible assets	2	-	8 years

Financial instruments and concentration of credit risk

(d) Financial instruments and concentration of credit riskFinancial instruments that potentially subject the Company to concentration of credit risk are reflected principally in cash and cash equivalents, derivative financial instruments and accounts receivable. The Company places its cash and cash equivalents and derivative financial instruments with corporations and banks with high investment grade ratings, limits the amount of credit exposure with any one corporation or bank and conducts ongoing evaluations of the creditworthiness of the corporations and banks with which it does business. To reduce its credit risk on accounts receivable, the Company conducts ongoing credit evaluations of its customers. The General Electric Company (“GE”) accounted for 16% and 10% of the Company’s receivables as of December 31, 2020 and September 30, 2021, respectively. GE accounted for 12% and 13% of the Company’s revenues for the three and nine months ended September 30, 2020, respectively and 9% and 10% of the Company’s revenues for the three and nine months ended September 30, 2021, respectively.

Accounts receivable

(e) Accounts receivable

Revenue Recognition

(f) Revenue Recognition

2. Summary of significant accounting policies (Continued)

Significant judgements

Leases

(g) Leases

2. Summary of significant accounting policies (Continued)

The carrying value of ROU assets is reviewed for impairment, similar to long-lived assets, whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable.

Significant judgements

Cost of revenue

(h) Cost of revenue

2. Summary of significant accounting policies (Continued)

Selling, general and administrative expenses

(i) Selling, general and administrative expenses

Credit losses

(j) Credit losses

Reclassification

(k) Reclassification Certain reclassifications have been made in the consolidated financial statements of prior periods to conform to the classification used in the current period. The impact of such reclassifications on the consolidated financial statements is not material.

Impairment of long-lived assets

(l) Impairment of long-lived assets Long-lived assets, including certain intangible assets, to be held and used are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Such assets are required to be tested for impairment if the carrying amount of the assets is higher than the future undiscounted net cash flows expected to be generated by the assets. The impairment amount to be recognized is measured as the amount by which the carrying value of the assets exceeds their fair value. The Company determines fair value by using a discounted cash flow approach.

Recently issued accounting pronouncements

(m) Recently issued accounting pronouncements

The authoritative bodies release standards and guidance which are assessed by management for impact on the Company’s consolidated financial statements.

The Company has adopted the following recently released accounting standards:

The Company adopted ASU 2016-13, ASU 2019-05 and ASU 2019-11 beginning January 1, 2020, including interim periods in fiscal year 2020.

Summary of significant accounting policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Schedule of estimated useful lives of intangible assets


Customer-related intangible assets	1	-	11 years
Marketing-related intangible assets	1	-	10 years
Technology-related intangible assets	2	-	8 years

Cash and cash equivalents (Tables)

9 Months Ended

Sep. 30, 2021

Cash and Cash Equivalents [Abstract]

Schedule of Cash and Cash Equivalents


	As of December 31, 2020		As of September 30, 2021
Cash and other bank balances	680,440		922,475
Total	$	680,440	$	922,475

Accounts receivable, net of allowance for credit losses (Tables)

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Schedule of allowance for credit losses

The following table provides details of the Company’s allowance for credit losses on accounts receivable:


	Year ended December 31, 2020		Nine months ended September 30, 2021
Opening balance as of January 1	$	29,969	$	27,707
Transition period adjustment on accounts receivables (through retained earnings) pursuant to adoption of ASC 326	4,185		—
Adjusted balance as of January 1	$	34,154	$	27,707
Additions due to acquisitions	200		—
Additions charged/reversal released to cost and expense	3,307		2,953
Deductions/effect of exchange rate fluctuations	(9,954)		(1,133)
Closing balance	$	27,707	$	29,527

Fair value measurements (Tables)

9 Months Ended

Sep. 30, 2021

Derivatives, Fair Value [Line Items]

Schedule of fair value of assets and liabilities, including derivative instruments, at fair value on a recurring basis


	As of December 31, 2020
	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Other Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets
Derivative instruments (Note a, c)	$	27,709	$	—	$	27,709	$	—
Deferred compensation plan assets (Note a, e)	26,832		—		—		26,832
Total	$	54,541	$	—	$	27,709	$	26,832
Liabilities
Earn-out Consideration (Note b, d)	$	8,272	$	—	$	—	$	8,272
Derivative instruments (Note b, c)	40,981		—		40,981		—
Deferred compensation plan liability (Note b, f)	26,390		—		—		26,390
Total	$	75,643	$	—	$	40,981	$	34,662


	As of September 30, 2021
	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Other Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets
Derivative instruments (Note a, c)	$	22,931	$	—	$	22,931	$	—
Deferred compensation plan assets (Note a, e)	36,306		—		—		36,306
Total	$	59,237	$	—	$	22,931	$	36,306
Liabilities
Earn-out consideration (Note b, d)	$	6,156	$	—	$	—	$	6,156
Derivative instruments (Note b, c)	22,828		—		22,828		—
Deferred compensation plan liability (Note b, f)	35,715		—		—		35,715
Total	$	64,699	$	—	$	22,828	$	41,871

(a)Included in “prepaid expenses and other current assets” and “other assets” in the consolidated balance sheets.

(b)Included in “accrued expenses and other current liabilities” and “other liabilities” in the consolidated balance sheets.

6. Fair value measurements (Continued)

Deferred Compensation Plan Assets

Derivatives, Fair Value [Line Items]

Schedule of roll-forward of fair value of deferred compensation plan assets categorized as level 3 in fair value hierarchy


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,837	$	35,533	$	11,208	$	26,832
Additions (net of redemption)	639		857		10,500		6,816
Change in fair value of deferred compensation plan assets (Note a)	1,204		(84)		1,972		2,658
Closing balance	$	23,680	$	36,306	$	23,680	$	36,306

(a)Changes in the fair value of plan assets are reported in “other income (expense), net” in the consolidated statements of income.

Business Acquisition Contingent Consideration

Derivatives, Fair Value [Line Items]

Schedule of roll-forward of fair value of earn-out consideration categorized as level 3 in fair value hierarchy


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,935	$	5,716	$	22,184	$	8,272
Payments made on earn-out consideration (Note a)	—		—		—		(2,556)
Change in fair value of earn-out consideration (Note b)	(3,773)		—		(4,452)		—
Others (Note c)	—		440		430		440
Closing balance	$	18,162	$	6,156	$	18,162	$	6,156

(b)Changes in the fair value of earn-out consideration are reported in “other operating (income) expense, net” in the consolidated statements of income.

Deferred Compensation Liabilities

Derivatives, Fair Value [Line Items]

Schedule of roll-forward of fair value of earn-out consideration categorized as level 3 in fair value hierarchy


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Opening balance	$	21,375	$	35,034	$	10,943	$	26,390
Additions (net of redemption)	792		840		10,367		6,799
Change in fair value of deferred compensation plan liabilities (Note a)	1,085		(159)		1,942		2,526
Closing balance	$	23,252	$	35,715	$	23,252	$	35,715

(a)Changes in the fair value of deferred compensation plan liabilities are reported in “selling, general and administrative expenses” in the consolidated statements of income.

Derivative financial instruments (Tables)

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of aggregate notional principal amounts of outstanding derivative financial instruments with related balance sheet exposure

The following table presents the aggregate notional principal amounts of outstanding derivative financial instruments together with the related balance sheet exposure:


	Notional principal amounts (note a)				Balance sheet exposure asset (liability) (note b)
	As of December 31, 2020		As of September 30, 2021		As of December 31, 2020		As of September 30, 2021
Foreign exchange forward contracts denominated in:
United States Dollars (sell) Indian Rupees (buy)	$	1,150,000	$	1,022,500	$	15,207	$	13,564
United States Dollars (sell) Mexican Peso (buy)	17,500		13,000		716		(130)
United States Dollars (sell) Philippines Peso (buy)	67,200		96,750		1,332		(3,078)
Euro (sell) United States Dollars (buy)	96,651		73,954		(5,659)		963
Singapore Dollars (buy) United States Dollars (sell)	10,153		10,153		66		(237)
Euro (sell) Romanian Leu (buy)	29,489		27,833		(22)		(104)
Japanese Yen (sell) Chinese Renminbi (buy)	19,230		4,431		473		603
United States Dollars (sell) Hungarian Font (buy)	30,000		21,900		904		(722)
Hungarian Font (Sell) Euro (buy)	10,444		9,857		61		(93)
Australian Dollars (sell) Indian Rupees (buy)	140,525		80,685		(7,670)		546
Pound Sterling (sell) United States Dollar (buy)	—		24,955		—		766
Interest rate swaps (floating to fixed)	488,022		467,107		(18,680)		(11,975)
					$	(13,272)	$	103

7. Derivative financial instruments (Continued)

(b)Balance sheet exposure is denominated in U.S. dollars and denotes the mark-to-market impact of the derivative financial instruments on the reporting date.

Schedule of fair value of derivative instruments and their location in the Company's financial statements

The fair value of the Company’s derivative instruments and their location in the Company’s financial statements are summarized in the table below:


	Cash flow hedges				Non-designated
	As of December 31, 2020		As of September 30, 2021		As of December 31, 2020		As of September 30, 2021
Assets
Prepaid expenses and other current assets	$	16,188	$	11,700	$	5,357	$	1,200
Other assets	$	6,164	$	10,031	$	—	$	—

Liabilities
Accrued expenses and other current liabilities	$	16,387	$	13,332	$	3,785	$	1,982
Other liabilities	$	16,886	$	7,474	$	3,923	$	40

Schedule gains (losses) recorded as component of other comprehensive income (loss) in connection with cash flow hedges

In connection with cash flow hedges, the gains (losses) recorded as a component of other comprehensive income (loss) (“OCI”), and the related tax effects are summarized below:


	Three months ended September 30,
	2020						2021
	Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount		Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount
Opening balance	$	(54,335)	$	9,994	$	(44,341)	$	(7,883)	$	1,355	$	(6,528)
Net gains (losses) reclassified into statement of income on completion of hedged transactions	(3,996)		1,029		(2,967)		2,443		(526)		1,917
Changes in fair value of effective portion of outstanding derivatives, net	20,550		(3,661)		16,889		11,984		(2,278)		9,706
Gain/(loss) on cash flow hedging derivatives, net	24,546		(4,690)		19,856		9,541		(1,752)		7,789
Closing balance	$	(29,789)	$	5,304	$	(24,485)	$	1,658	$	(397)	$	1,261


	Nine months ended September 30,
	2020						2021
	Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount		Before tax Amount		Tax (Expense) or Benefit*		Net of tax Amount
Opening balance	$	(4,126)	$	(1,466)	$	(5,592)	$	(10,921)	$	1,861	$	(9,060)
Net gains (losses) reclassified into statement of income on completion of hedged transactions	(4,909)		722		(4,187)		6,361		(1,463)		4,898
Changes in fair value of effective portion of outstanding derivatives, net	(30,572)		7,492		(23,080)		18,940		(3,721)		15,219
Gain/(loss) on cash flow hedging derivatives, net	(25,663)		6,770		(18,893)		12,579		(2,258)		10,321
Closing balance	$	(29,789)	$	5,304	$	(24,485)	$	1,658	$	(397)	$	1,261

*The tax (expense) benefit includes the effect of novating certain hedging instruments as part of an intercompany transfer.

Schedule of gains or losses recognized in other comprehensive income (loss)

The gains or losses recognized in other comprehensive income (loss) and their effects on financial performance are summarized below:


Derivatives in Cash Flow Hedging Relationships	Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion)								Location of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion)	Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion)
	Three months ended September 30,				Nine months ended September 30,					Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021			2020		2021		2020		2021
Forward foreign exchange contracts	$	20,518	$	12,175	$	(10,609)	$	17,457	Revenue	$	62	$	416	$	3,973	$	515
Interest rate swaps	32		(191)		(19,963)		667		Cost of revenue	(1,571)		3,160		(4,833)		9,288
Treasury rate lock	—		—		—		816		Selling, general and administrative expenses	(440)		849		(1,310)		2,513
									Interest expense	(2,047)		(1,982)		(2,739)		(5,955)
	$	20,550	$	11,984	$	(30,572)	$	18,940		$	(3,996)	$	2,443	$	(4,909)	$	6,361


		Amount of Gain (Loss) recognized in Statement of Income on Derivatives
		Three months ended September 30,				Nine months ended September 30,
Derivatives not designated as hedging instruments	Location of Gain (Loss) recognized in Statement of Income on Derivatives	2020		2021		2020		2021
Forward foreign exchange contracts (Note a)	Foreign exchange gains (losses), net	$	7,136	$	3,938	$	(6,698)	$	8,775
Forward foreign exchange contracts (Note b)	Foreign exchange gains (losses), net	—		—		3,963		—
		$	7,136	$	3,938	$	(2,735)	$	8,775

Prepaid expenses and other current assets (Tables)

9 Months Ended

Sep. 30, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of prepaid expenses and other current assets

Prepaid expenses and other current assets consist of the following:


	As of December 31, 2020		As of September 30, 2021
Advance income and non-income taxes	$	73,008	$	106,192
Contract asset (Note 20)	9,035		9,942
Prepaid expenses	32,375		40,738
Derivative instruments	21,545		12,900
Employee advances	2,636		4,259
Deposits	8,774		5,169
Advances to suppliers	2,716		1,000
Others	37,319		21,398
	$	187,408	$	201,598

Property, plant and equipment, net (Tables)

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Schedule of gross and net amount of property, plant and equipment

The following table provides the gross and net amount of property, plant and equipment:


	As of December 31, 2020		As of September 30, 2021
Property, plant and equipment, gross	$	792,463	$	802,488
Less: Accumulated depreciation, amortization and impairment	(561,341)		(594,568)
Property, plant and equipment, net	$	231,122	$	207,920

Goodwill and intangible assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in goodwill

The following table presents the changes in goodwill for the year ended December 31, 2020 and nine months ended September 30, 2021:


	For the year ended December 31, 2020	For the nine months ended September 30, 2021
Opening balance	1,574,466	1,695,688
Goodwill relating to acquisitions consummated during the period	123,595	—
Impact of measurement period adjustments	(5,653)	(108)
Effect of exchange rate fluctuations	3,280	(9,896)
Closing balance	1,695,688	1,685,684

Schedule of Goodwill

The following table presents the changes in goodwill by reporting unit for the year ended December 31, 2020:


	BCMI	CGRLH	HMS	Total
Opening balance	417,213	555,130	602,123	1,574,466
Goodwill relating to acquisitions consummated during the period	2,559	52,612	68,424	123,595
Impact of measurement period adjustments	(542)	(1,372)	(3,739)	(5,653)
Effect of exchange rate fluctuations	942	1,204	1,134	3,280
Closing balance	420,172	607,574	667,942	1,695,688

Schedule of changes in goodwill by reporting unit

The following table presents the changes in goodwill by reporting unit for the nine months ended September 30, 2021:


	BCMI	CGRLH	HMS	Total
Opening balance	420,172	607,574	667,942	1,695,688
Goodwill relating to acquisitions consummated during the period	—	—	—	—
Impact of measurement period adjustments	(3)	(28)	(77)	(108)
Effect of exchange rate fluctuations	(3,061)	(3,726)	(3,109)	(9,896)
Closing balance	417,108	603,820	664,756	1,685,684

Summary of Intangible Assets

The Company’s intangible assets are as follows:


	As of December 31, 2020						As of September 30, 2021
	Gross carrying amount		Accumulated amortization & Impairment		Net		Gross carrying amount		Accumulated amortization & Impairment		Net
Customer-related intangible assets	$	478,189	$	359,652	$	118,537	$	474,041	$	385,494	$	88,547
Marketing-related intangible assets	96,561		61,154		35,407		96,395		73,113		23,282
Technology-related intangible assets	152,293		90,866		61,427		171,547		112,368		59,179
Intangible assets under development	23,864		2,503		21,361		—		—		—
	$	750,907	$	514,175	$	236,732	$	741,983	$	570,975	$	171,008

Schedule of impairment charge recorded for various categories of assets

The summary below represents the impairment charge recorded for various categories of assets during the three and nine months ended September 30, 2020 and September 30, 2021:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Technology related intangibles	$	347	$	—	$	4,878	$	205
Customer related intangibles	—		—		1,239		—
Total Intangibles	$	347	$	—	$	6,117	$	205
Property, plant and equipment	$	327	$	—	$	4,530	$	710
Total Property, plant and equipment	$	327	$	—	$	4530	$	710
Grand Total	$	674	$	—	$	10,647	$	915

Long-term debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of maturity profile of term loan outstanding net of debt amortization expense

The maturity profile of the term loan outstanding as of September 30, 2021, net of debt amortization expense, is as follows:


Year ended	Amount
2021	$	8,386
2022	33,564
2023	526,749
Total	$	568,699

Summary of long term debt

A summary of the Company’s long-term debt is as follows:


	As of December 31, 2020		As of September 30, 2021
Credit facility, net of amortization expenses	$	593,850	$	568,699
3.70% 2017 Senior Notes, net of debt amortization expenses	349,342		349,736
3.375% 2019 Senior Notes, net of debt amortization expenses	397,716		398,152
1.750% 2021 Senior Notes, net of debt amortization expenses	$	—	347,277
Total	$	1,340,908	$	1,663,864
Current portion	33,537		383,293
Non-current portion	1,307,371		1,280,571
Total	$	1,340,908	$	1,663,864

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Accrued expenses and other current liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Payables and Accruals [Abstract]

Schedule of accrued expenses and other current liabilities

Accrued expenses and other current liabilities consist of the following:


	As of December 31, 2020		As of September 30, 2021
Accrued expenses	$	150,390	$	153,186
Accrued employee cost	286,399		250,136
Earn-out consideration	2,651		3,051
Statutory liabilities	104,768		68,203
Retirement benefits	1,967		1,301
Compensated absences	28,635		27,972
Derivative instruments	20,172		15,314
Contract liabilities (Note 20)	154,717		150,322
Finance lease liability	18,066		21,348
Other liabilities	39,004		45,147
	$	806,769	$	735,980

Other liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Other Liabilities Disclosure [Abstract]

Schedule of other liabilities

Other liabilities consist of the following:


	As of December 31, 2020		As of September 30, 2021
Accrued employee cost	$	19,797	$	22,154
Earn-out consideration	5,621		3,105
Retirement benefits	11,947		13,123
Compensated absences	47,656		52,774
Derivative instruments	20,809		7,514
Contract liabilities (Note 20)	68,760		84,170
Finance lease liability	30,958		20,407
Others	32,850		44,495
	$	238,398	$	247,742

Employee benefit plans (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Schedule of net defined benefit plan costs

Net defined benefit plan costs for the three and nine months ended September 30, 2020 and 2021 include the following components:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Service costs	$	2,733	$	3,454	$	8,402	$	10,528
Interest costs	1,267		1,363		3,898		4,135
Amortization of actuarial loss	615		558		1,883		1,704
Expected return on plan assets	(1,108)		(1,534)		(3,406)		(4,605)
Net defined benefit plan costs	$	3,507	$	3,841	$	10,777	$	11,762

Schedule of amounts contributed to defined contribution plans in various jurisdictions

During the three and nine months ended September 30, 2020 and 2021, the Company contributed the following amounts to defined contribution plans in various jurisdictions:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
India	$	7,289	$	9,637	$	22,362	$	27,445
U.S.	4,654		5,020		13,935		15,508
U.K.	4,547		5,034		13,977		14,352
China	4,503		6,362		11,243		18,433
Other regions	3,189		3,913		8,806		11,155
Total	$	24,182	$	29,966	$	70,323	$	86,893

Stock-based compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of significant assumptions used in determining fair value of options granted


	Nine months ended September 30,2020		Nine months ended September 30,2021
Dividend yield	0.89	%	0.84	-	1.08	%
Expected life (in months)	84				84
Risk-free rate of interest	1.50	%	1.12	-	1.37	%
Volatility	20.96	%	26.05	-	26.18	%

Schedule of stock option activity

A summary of stock option activity during the nine months ended September 30, 2021 is set out below:


	Nine Months Ended September 30, 2021
	Shares arising out of options	Weighted average exercise price	Weighted average remaining contractual life (years)	Aggregate intrinsic value
Outstanding as of January 1, 2021	7,347,241	26.41	5.7	—
Granted	1,831,180	43.98	—	—
Forfeited	(25,000)	31.50	—	—
Expired	—	—	—	—
Exercised	(1,020,125)	20.50	—	26,085
Outstanding as of September 30, 2021	8,133,296	31.10	6.3	134,565
Vested as of September 30, 2021 and expected to vest thereafter (Note a)	7,485,096	30.24	6.3	130,045
Vested and exercisable as of September 30, 2021	3,242,333	23.94	3.7	76,436
Weighted average grant date fair value of grants during the period	11.35

(a)Options expected to vest reflect an estimated forfeiture rate.

Schedule of restricted share units activity


	Nine Months Ended September 30, 2021
	Number of Restricted Share Units	Weighted Average Grant Date Fair Value
Outstanding as of January 1, 2021	860,308	36.44
Granted	466,702	44.00
Vested (Note a)	(351,926)	31.01
Forfeited	(54,514)	37.39
Outstanding as of September 30, 2021	920,570	42.29
Expected to vest (Note b)	797,265

(a)351,926 RSUs that vested during the period were net settled upon vesting by issuing 230,284 shares (net of minimum statutory tax withholding).

(b)The number of RSUs expected to vest reflects the application of an estimated forfeiture rate.

Schedule of performance units activity

A summary of PU activity during the nine months ended September 30, 2021 is set out below:


	Nine months ended September 30, 2021
	Number of Performance Units	Weighted Average Grant Date Fair Value	Maximum Shares Eligible to Receive
Outstanding as of January 1, 2021	4,876,196	34.56	4,876,196
Granted	1,335,917	44.04	2,671,834
Vested (Note a)	(1,784,140)	30.66	(1,784,140)
Forfeited	(201,008)	39.76	(239,736)
Adjustment upon final determination of level of performance goal achievement (Note b)	9,625	42.48	9,625
Outstanding as of September 30, 2021	4,236,590	38.97	5,533,779
Expected to vest (Note c)	4,018,807

(a)1,784,140 PSUs that vested during the period were net settled upon vesting by issuing 1,102,440 shares (net of minimum statutory tax withholding).

(c)The number of PUs expected to vest reflects the application of an estimated forfeiture rate.

Earnings per share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of earnings per share


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Net income	$	85,435	$	102,386	$	233,294	$	296,363
Weighted average number of common shares used in computing basic earnings per common share	190,949,108		187,856,026		190,705,671		187,945,234
Dilutive effect of stock-based awards	5,706,032		5,303,903		5,394,396		4,940,018
Weighted average number of common shares used in computing dilutive earnings per common share	196,655,140		193,159,929		196,100,067		192,885,252
Earnings per common share
Basic	$	0.45	$	0.55	$	1.22	$	1.58
Diluted	$	0.43	$	0.53	$	1.19	$	1.54

Segment reporting (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Schedule of Revenue and Adjusted Income from Operations by Reporting Segments

Revenues and adjusted income from operations for each of the Company’s segments for the three months ended September 30, 2020 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others#	Total
Revenues, net	283,806	318,290	339,008	941,104	(5,581)	935,523
Adjusted income from operations	38,771	47,847	60,990	147,608	12,365	159,973
Stock-based compensation						(19,487)
Amortization and impairment of acquired intangible assets (other than included above)						(9,995)
Foreign exchange gains (losses), net						(2,402)
Interest income (expense), net						(12,757)
Restructuring expenses (refer to note (a) below and note 26)						(4,889)
Income tax expense						(25,008)
Net income						85,435

Revenues and adjusted income from operations for each of the Company’s segments for the three months ended September 30, 2021 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others*	Total
Revenues, net	258,521	388,069	366,741	1,013,331	2,406	1,015,737
Adjusted income from operations	32,514	63,681	68,263	164,458	4,484	168,942
Stock-based compensation						(21,485)
Amortization and impairment of acquired intangible assets (other than included above)						(13,688)
Foreign exchange gains (losses), net						2,733
Interest income (expense), net						(12,765)
Income tax expense						(21,351)
Net income						102,386

Revenues and adjusted income from operations for each of the Company’s segments for the nine months ended September 30, 2020 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others##	Total
Revenues, net	805,807	930,203	1,045,920	2,781,930	(23,121)	2,758,809
Adjusted income from operations	88,888	134,691	178,741	402,320	38,873	441,193
Stock-based compensation						(55,818)
Amortization and impairment of acquired intangible assets (other than included above)						(32,218)
Foreign exchange gains (losses), net						11,611
Interest income (expense), net						(38,072)
Restructuring expenses (refer to note (b) below and note 26)						(26,547)
Income tax expense						(66,855)
Net income						233,294

Revenues and adjusted income from operations for each of the Company’s segments for the nine months ended September 30, 2021 were as follows:


	Reportable segments
	BCMI	CGRLH	HMS	Total Reportable segment	Others**	Total
Revenues, net	750,589	1,101,182	1,081,767	2,933,538	16,396	2,949,934
Adjusted income from 0perations	98,972	184,647	203,915	487,534	21,087	508,621
Stock-based compensation						(58,604)
Amortization and impairment of acquired intangible assets (other than included above)						(43,977)
Foreign exchange gains (losses), net						11,529
Interest income (expense), net						(38,198)
Income tax expense						(83,008)
Net income						296,363

Net revenues (Tables)

9 Months Ended

Sep. 30, 2021

Revenues [Abstract]

Schedule of net revenues disaggregated by customer

In the following table, the Company’s revenue is disaggregated by customer classification:


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Global clients	$	824,175	$	920,628	$	2,409,047	$	2,667,036
GE	111,348		95,109		349,762		282,898
Total net revenues	$	935,523	$	1,015,737	$	2,758,809	$	2,949,934

Schedule of details of contract balances

The following table shows the details of the Company’s contract balances:


	As of December 31, 2020		As of September 30, 2021
Contract assets (Note a)	$	15,805	$	15,973
Contract liabilities (Note b)
Deferred transition revenue	$	130,804	$	156,308
Advance from customers	$	92,673	$	78,184

(a)Included in "prepaid expenses and other current assets" and "other assets" in the consolidated balance sheet.

(b)Included in "accrued expenses and other current liabilities" and "other liabilities" in the consolidated balance sheet.

Schedule of estimated revenue expected to be recognized in the future related to remaining performance obligation

The following table includes estimated revenue expected to be recognized in the future related to remaining performance obligations as of September 30, 2021:


Particulars	Total		Less than 1 year		1-3 years		3-5 years		After 5 years
Transaction price allocated to remaining performance obligations	$	234,492	$	150,322	$	67,690	$	13,997	$	2,483

Schedule of contract cost assets

The following table provides details of the Company’s contract cost assets:


	Three months ended September 30,								Nine months ended September 30,
	2020				2021				2020				2021
Particulars	Sales incentive programs		Transition activities		Sales incentive programs		Transition activities		Sales incentive programs		Transition activities		Sales incentive programs		Transition activities
Opening balance	$	32,182	$	178,570	$	31,559	$	210,747	$	35,366	$	170,132	$	33,390	$	192,507
Closing balance	30,047		181,747		31,058		209,320		30,047		181,747		31,058		209,320
Amortization	6,094		17,935		5,041		23,028		14,329		50,397		14,576		58,644

Other operating (income) expense, net (Tables)

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Schedule of other operating (income) expense, net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Write-down of intangible assets and property, plant and equipment*	$	674	$	—	$	10,647	$	915
Write-down of operating right-of-use assets and other assets*	—		—		10,244		—
Other operating (income) expense	(4,192)		(93)		(5,900)		(1,132)
Other operating (income) expense, net	$	(3,518)	$	(93)	$	14,991	$	(217)

*See note 26 for additional information about other operating (income) expense, net for the three and nine months ended September 30, 2020.

Interest income (expense), net (Tables)

9 Months Ended

Sep. 30, 2021

Banking and Thrift, Interest [Abstract]

Schedule of Interest Income (Expense), Net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Interest income	$	1,828	$	2,068	$	5,229	$	4,544
Interest expense	(14,585)		(14,833)		(43,301)		(42,742)
Interest income (expense), net	$	(12,757)	$	(12,765)	$	(38,072)	$	(38,198)

Income taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of activities related to unrecognized tax benefits for uncertain tax positions

The following table summarizes activities related to the Company’s unrecognized tax benefits for uncertain tax positions for the nine months ended September 30, 2021:


	Nine months ended September 30,2021
Opening balance at January 1	$	34,300
Increase related to prior year tax positions, including recorded in acquisition accounting	686
Decrease related to settlements with tax authorities	(5,640)
Decrease related to prior year tax position due to lapse of applicable statute of limitation	(175)
Effect of exchange rate changes	(786)
Closing balance at September 30	$	28,385

Other Income (expense), net (Tables)

9 Months Ended

Sep. 30, 2021

Other Nonoperating Income (Expense) [Abstract]

Schedule of Other Income (Expense), Net


	Three months ended September 30,				Nine months ended September 30,
	2020		2021		2020		2021
Other income (expense)	$	960	$	1,480	$	946	$	8,966
Other income (expense), net	$	960	$	1,480	$	946	$	8,966

Organization - Narrative (Detail)	Sep. 30, 2021 Employee Country
Product Information [Line Items]
Number of countries in which entity operates \| Country	30
Minimum
Product Information [Line Items]
Number of employees around the globe, minimum \| Employee	105,400

Summary of Significant Accounting Policies - Schedule of estimated useful lives of intangible assets (Detail)	9 Months Ended
	Sep. 30, 2021
Customer-related intangible assets \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	1 year
Customer-related intangible assets \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	11 years
Marketing-related intangible assets \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	1 year
Marketing-related intangible assets \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	10 years
Technology-related intangible assets \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	2 years
Technology-related intangible assets \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets estimated useful lives	8 years

Summary of Significant Accounting Policies - Narrative (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Minimum
Schedule Of Significant Accounting Policies [Line Items]
Additional terms of termination option			1 year
Maximum
Schedule Of Significant Accounting Policies [Line Items]
Additional terms of termination option			10 years
GE \| Credit Concentration Risk \| Receivables
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk (in percentage)			10.00%		16.00%
GE \| Revenue Concentration Risk \| Revenue From Contract With Customer
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk (in percentage)	9.00%	12.00%	10.00%	13.00%

Business acquisitions - Enquero inc. - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Dec. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Payment for business acquisitions, net of cash acquired		$ 6,613	$ 0
Goodwill	$ 1,695,688	$ 1,685,684		$ 1,574,466
Enquero Inc.
Business Acquisition [Line Items]
Ownership percentage acquired (in percentage)	100.00%
Purchase consideration	$ 148,797
Payment for business acquisitions, net of cash acquired	137,166
Cash and cash equivalents	11,631
Cash consideration to acquired certain assets and assumed certain liabilities	$ 141,938
Acquired intangible assets, weighted average amortization period	4 years
Goodwill	$ 86,561
Acquisition related cost	1,590
Acquired assets	32,759
Liabilities assumed	17,113
Recognized net deferred tax liability	13,310
Indemnification assets	5,848
Enquero Inc. \| BCMI
Business Acquisition [Line Items]
Goodwill	2,556
Enquero Inc. \| CGRLH
Business Acquisition [Line Items]
Goodwill	22,211
Enquero Inc. \| HMS
Business Acquisition [Line Items]
Goodwill	61,794
Enquero Inc. \| Customer-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	49,000
Enquero Inc. \| Marketing-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	9,500
Enquero Inc. \| Technology-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	$ 1,400

Business acquisitions - SomethingDigital.Com LLC - Narrative (Details) $ in Thousands		9 Months Ended
	Oct. 05, 2020 USD ($) numberOfOperatingSegment	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Payment for business acquisitions, net of cash acquired		$ 6,613	$ 0
Goodwill		1,685,684		$ 1,695,688	$ 1,574,466
Goodwill deductible for tax purposes		$ 277,428		$ 296,046
SomethingDigital.Com LLC
Business Acquisition [Line Items]
Ownership percentage acquired (in percentage)	100.00%
Purchase consideration	$ 57,451
Payment for business acquisitions, net of cash acquired	56,073
Cash and cash equivalents	1,378
Cash consideration to acquired certain assets and assumed certain liabilities	57,704
Consideration receivable	$ 253
Acquired intangible assets, weighted average amortization period	4 years
Goodwill	$ 36,926
Number of Reportable Segments \| numberOfOperatingSegment	2
Goodwill deductible for tax purposes	$ 35,084
Acquisition related cost	1,060
Acquired assets	9,538
Liabilities assumed	4,494
Net deferred tax assets	81
SomethingDigital.Com LLC \| CGRLH
Business Acquisition [Line Items]
Goodwill	30,373
SomethingDigital.Com LLC \| HMS
Business Acquisition [Line Items]
Goodwill	6,553
SomethingDigital.Com LLC \| Customer-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	11,900
SomethingDigital.Com LLC \| Marketing-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	$ 3,500

Business acquisitions - Right Point Consulting LLC - Narrative (Details) - USD ($) $ in Thousands	Nov. 12, 2019	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 1,685,684	$ 1,695,688	$ 1,574,466
Goodwill deductible for tax purposes		277,428	$ 296,046
Rightpoint Consulting LLC
Business Acquisition [Line Items]
Ownership percentage acquired (in percentage)	100.00%
Purchase consideration	$ 270,669
Payments to acquire businesses, net of cash acquired and payables	268,170
Cash and cash equivalents	2,499
Cash consideration to acquired certain assets and assumed certain liabilities	248,470
Consideration payable	$ 22,199	$ 5,166
Consideration in cash at closing date for limited liability company interests and vested options to selling equity holders (in percentage)	100.00%
Limited liability company interests and vested options to selling equity holders (in percentage)	25.00%
Deferred earn-out consideration rolling period to certain selling equity holders	3 years
Consideration for remaining limited liability company interests and vested options to selling equity holders (in percentage)	75.00%
Deferred variable earn-out consideration to certain selling equity holders	$ 21,500
Vested options rolling period to certain selling equity holders	3 years
Acquired intangible assets, weighted average amortization period	5 years
Goodwill	$ 177,181
Goodwill deductible for tax purposes	91,929
Acquisition related cost	7,385
Acquired assets	39,140
Liabilities assumed	22,295
Recognized net deferred tax liability	1,643
Rightpoint Consulting LLC \| BCMI
Business Acquisition [Line Items]
Goodwill	16,983
Rightpoint Consulting LLC \| CGRLH
Business Acquisition [Line Items]
Goodwill	42,993
Rightpoint Consulting LLC \| HMS
Business Acquisition [Line Items]
Goodwill	117,205
Rightpoint Consulting LLC \| Customer-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	46,000
Rightpoint Consulting LLC \| Marketing-related intangible assets
Business Acquisition [Line Items]
Acquired intangibles	$ 29,000

Cash and Cash Equivalents - Schedule of cash and cash equivalents (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Cash and other bank balances	$ 922,475	$ 680,440
Total	$ 922,475	$ 680,440

Accounts Receivable, Net of Allowance for Credit Losses - Narrative (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020	Sep. 30, 2021	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable		$ 908,727	$ 980,698
Allowance for credit losses		27,707	29,527	$ 29,969
Accounts receivable, after allowance for credit loss, current		881,020	951,171
Deferred billings		28,491	14,532
Allowances for credit losses		3,134	2,593
Net deferred billings		25,357	$ 11,939
Allowance for credit losses current period charge	$ 541	2,400
ASC 326
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transition period adjustment on accounts receivables (through retained earnings) pursuant to ASC 326		$ (734)

Accounts Receivable, Net of Allowance for Credit Losses - Allowance for credit losses (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Provisions For Doubtful Accounts [Line Items]
Opening balance	$ 27,707	$ 29,969
Additions due to acquisitions	0	200
Additions charged/reversal released to cost and expense	2,953	3,307
Deductions/effect of exchange rate fluctuations	(1,133)	(9,954)
Closing balance	$ 29,527	27,707
Cumulative Effect, Period of Adoption, Adjustment
Provisions For Doubtful Accounts [Line Items]
Opening balance		4,185
Cumulative Effect, Period of Adoption, Adjusted Balance
Provisions For Doubtful Accounts [Line Items]
Opening balance		$ 34,154

Fair Value Measurements - Schedule of fair value of assets and liabilities, including derivative instruments, at fair value on a recurring basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments, assets	$ 22,931	$ 27,709
Deferred compensation plan assets	36,306	26,832
Total, assets	59,237	54,541
Earn-out Consideration	6,156	8,272
Derivative instruments, liabilities	22,828	40,981
Deferred compensation plan liability	35,715	26,390
Total, liabilities	64,699	75,643
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments, assets	0	0
Deferred compensation plan assets	0	0
Total, assets	0	0
Earn-out Consideration	0	0
Derivative instruments, liabilities	0	0
Deferred compensation plan liability	0	0
Total, liabilities	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments, assets	22,931	27,709
Deferred compensation plan assets	0	0
Total, assets	22,931	27,709
Earn-out Consideration	0	0
Derivative instruments, liabilities	22,828	40,981
Deferred compensation plan liability	0	0
Total, liabilities	22,828	40,981
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments, assets	0	0
Deferred compensation plan assets	36,306	26,832
Total, assets	36,306	26,832
Earn-out Consideration	6,156	8,272
Derivative instruments, liabilities	0	0
Deferred compensation plan liability	35,715	26,390
Total, liabilities	$ 41,871	$ 34,662

Fair Value Measurements - Schedule of roll-forward of fair value of earn-out consideration categorized as level 3 in fair value hierarchy (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest payment on earn-out consideration, cash flows from operating activities		$ 0		$ 0
Interest payment on earn-out consideration, revenue	$ 440,000		$ 440,000
Business Acquisition Contingent Consideration
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening balance	5,716,000	21,935,000	8,272,000	22,184,000
Payments made on earn-out consideration	0	0	(2,556,000)	0
Change in fair value of earn out consideration	0	(3,773,000)	0	(4,452,000)
Others	440,000	0	440,000	430,000
Closing balance	$ 6,156,000	$ 18,162,000	$ 6,156,000	$ 18,162,000

Fair Value Measurements - Schedule of roll-forward of fair value of deferred compensation plan assets categorized as level 3 in fair value hierarchy (Detail) - Deferred Compensation Plan Assets - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening balance	$ 35,533	$ 21,837	$ 26,832	$ 11,208
Additions (net of redemption)	857	639	6,816	10,500
Change in fair value of deferred compensation plan assets	(84)	1,204	2,658	1,972
Closing balance	$ 36,306	$ 23,680	$ 36,306	$ 23,680

Fair Value Measurements - Roll-forward of fair value of deferred compensation liabilities categorized as Level 3 in fair value hierarchy (Detail) - Deferred Compensation Liabilities - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Opening balance	$ 35,034	$ 21,375	$ 26,390	$ 10,943
Additions (net of redemption)	840	792	6,799	10,367
Change in fair value of deferred compensation plan liabilities	(159)	1,085	2,526	1,942
Closing balance	$ 35,715	$ 23,252	$ 35,715	$ 23,252

Derivative Financial Instruments - Narrative (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Mar. 31, 2021
Foreign Exchange Forward
Derivative [Line Items]
Derivatives, term of contract	39 months
Interest Rate Swaps
Derivative [Line Items]
Derivatives, term of contract	39 months
Treasury Lock
Derivative [Line Items]
Treasury lock on fair value edges, amount		$ 350,000
Derivative instrument, gain amortized	$ 733

Derivative Financial Instruments - Schedule of aggregate notional principal amounts of outstanding derivative financial instruments with related balance sheet exposure (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative financial instrument, balance sheet exposure asset (liability)	$ 103,000	$ (13,272,000)
United States Dollars (sell) Indian Rupees (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	1,022,500,000	1,150,000,000
Derivative financial instrument, balance sheet exposure asset (liability)	13,564,000	15,207,000
United States Dollars (sell) Mexican Peso (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	13,000,000	17,500,000
Derivative financial instrument, balance sheet exposure asset (liability)	(130,000)	716,000
United States Dollars (sell) Philippines Peso (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	96,750,000	67,200,000
Derivative financial instrument, balance sheet exposure asset (liability)	(3,078,000)	1,332,000
Euro (sell) United States Dollars (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	73,954,000	96,651,000
Derivative financial instrument, balance sheet exposure asset (liability)	963,000	(5,659,000)
Singapore Dollars (buy) United States Dollars (sell)
Derivative [Line Items]
Derivative instrument notional principal amount	10,153,000	10,153,000
Derivative financial instrument, balance sheet exposure asset (liability)	(237,000)	66,000
Euro (sell) Romanian Leu (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	27,833,000	29,489,000
Derivative financial instrument, balance sheet exposure asset (liability)	(104,000)	(22,000)
Japanese Yen (sell) Chinese Renminbi (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	4,431,000	19,230,000
Derivative financial instrument, balance sheet exposure asset (liability)	603,000	473,000
United States Dollars (sell) Hungarian Font (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	21,900,000	30,000,000
Derivative financial instrument, balance sheet exposure asset (liability)	(722,000)	904,000
Hungarian Font (Sell) Euro (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	9,857,000	10,444,000
Derivative financial instrument, balance sheet exposure asset (liability)	(93,000)	61,000
Australian Dollars (sell) Indian Rupees (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	80,685,000	140,525,000
Derivative financial instrument, balance sheet exposure asset (liability)	546,000	(7,670,000)
Pound Sterling (sell) United States Dollar (buy)
Derivative [Line Items]
Derivative instrument notional principal amount	24,955,000	0
Derivative financial instrument, balance sheet exposure asset (liability)	766,000	0
Interest rate swaps (floating to fixed)
Derivative [Line Items]
Derivative instrument notional principal amount	467,107,000	488,022,000
Derivative financial instrument, balance sheet exposure asset (liability)	$ (11,975,000)	$ (18,680,000)

Derivative Financial Instruments - Schedule of fair value of derivative instruments and their location in the Company's financial statements (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Prepaid expenses and other current assets \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of assets	$ 1,200	$ 5,357
Other Assets \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of assets	0	0
Accrued expenses and other current liabilities \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of liabilities	1,982	3,785
Other Liabilities \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of liabilities	40	3,923
Cash Flow Hedges \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Fair value of assets	11,700	16,188
Cash Flow Hedges \| Other Assets
Derivatives, Fair Value [Line Items]
Fair value of assets	10,031	6,164
Cash Flow Hedges \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Fair value of liabilities	13,332	16,387
Cash Flow Hedges \| Other Liabilities
Derivatives, Fair Value [Line Items]
Fair value of liabilities	$ 7,474	$ 16,886

Derivative Financial Instruments - Schedule gains (losses) recorded as component of other comprehensive income (loss) in connection with cash flow hedges (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Opening balance, before-tax amount	$ (7,883)	$ (54,335)	$ (10,921)	$ (4,126)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	2,443	(3,996)	6,361	(4,909)
Changes in fair value of effective portion of outstanding derivatives, net	11,984	20,550	18,940	(30,572)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Total	9,541	24,546	12,579	(25,663)
Closing balance, before-tax amount	1,658	(29,789)	1,658	(29,789)
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Tax	1,355	9,994	1,861	(1,466)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, tax (expense) or benefit	(526)	1,029	(1,463)	722
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	(2,278)	(3,661)	(3,721)	7,492
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(1,752)	(4,690)	(2,258)	6,770
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Tax	(397)	5,304	(397)	5,304
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	(6,528)	(44,341)	(9,060)	(5,592)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, net of tax amount	1,917	(2,967)	4,898	(4,187)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	9,706	16,889	15,219	(23,080)
Net income (loss) on cash flow hedging derivatives, net of taxes (Note 7)	7,789	19,856	10,321	(18,893)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	$ 1,261	$ (24,485)	$ 1,261	$ (24,485)

Derivative Financial Instruments - Schedule of gains or losses recognized in other comprehensive income (loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Comprehensive Income (Loss) [Line Items]
Changes in fair value of effective portion of outstanding derivatives, net	$ 11,984	$ 20,550	$ 18,940	$ (30,572)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	2,443	(3,996)	6,361	(4,909)
Non designated Hedges, amount of (Gain) Loss recognized in Statement of Income on Derivatives	3,938	7,136	8,775	(2,735)
Net revenues
Other Comprehensive Income (Loss) [Line Items]
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	416	62	515	3,973
Cost of Revenue
Other Comprehensive Income (Loss) [Line Items]
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	3,160	(1,571)	9,288	(4,833)
Selling, general and administrative expenses
Other Comprehensive Income (Loss) [Line Items]
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	849	(440)	2,513	(1,310)
Interest Expense
Other Comprehensive Income (Loss) [Line Items]
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before-tax amount	(1,982)	(2,047)	(5,955)	(2,739)
Forward Foreign Exchange Contracts
Other Comprehensive Income (Loss) [Line Items]
Changes in fair value of effective portion of outstanding derivatives, net	12,175	20,518	17,457	(10,609)
Forward Foreign Exchange Contracts \| Foreign exchange gains (losses), net \| Not Designated as Hedging Instrument
Other Comprehensive Income (Loss) [Line Items]
Non designated Hedges, amount of (Gain) Loss recognized in Statement of Income on Derivatives	3,938	7,136	8,775	(6,698)
Forward Foreign Exchange Contracts \| Foreign exchange gains (losses), net \| Previously Designated as Hedging Instrument
Other Comprehensive Income (Loss) [Line Items]
Non designated Hedges, amount of (Gain) Loss recognized in Statement of Income on Derivatives	0	0	0	3,963
Interest Rate Swaps
Other Comprehensive Income (Loss) [Line Items]
Changes in fair value of effective portion of outstanding derivatives, net	(191)	32	667	(19,963)
Treasury Lock
Other Comprehensive Income (Loss) [Line Items]
Changes in fair value of effective portion of outstanding derivatives, net	$ 0	$ 0	$ 816	$ 0

Prepaid expenses and other current assets - Schedule of prepaid expenses and other current assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Advance income and non-income taxes	$ 106,192	$ 73,008
Contract asset	9,942	9,035
Prepaid expenses	40,738	32,375
Derivative instruments	12,900	21,545
Employee advances	4,259	2,636
Deposits	5,169	8,774
Advances to suppliers	1,000	2,716
Others	21,398	37,319
Prepaid expenses and other current assets, net	$ 201,598	$ 187,408

Property, Plant and Equipment, Net - Schedule of gross and net amount of property, plant and equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 802,488	$ 792,463
Less: Accumulated depreciation, amortization and impairment	(594,568)	(561,341)
Property, plant and equipment, net	$ 207,920	$ 231,122

Property, Plant and Equipment, Net - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Depreciation and amortization			$ 82,344	$ 88,273
Depreciation Expense on Property, Plant And Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 14,131	$ 17,257	46,305	50,863
Computer Software
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 1,461	$ 1,889	$ 4,469	$ 7,399

Goodwill and Intangible Assets - Schedule of changes in goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Opening balance	$ 1,695,688	$ 1,574,466
Goodwill relating to acquisitions consummated during the period	0	123,595
Impact of measurement period adjustments	(108)	(5,653)
Effect of exchange rate fluctuations	(9,896)	3,280
Closing balance	$ 1,685,684	$ 1,695,688

Goodwill and Intangible Assets - Changes in goodwill by reporting unit (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Opening balance	$ 1,695,688	$ 1,574,466
Goodwill relating to acquisitions consummated during the period	0	123,595
Impact of measurement period adjustments	(108)	(5,653)
Effect of exchange rate fluctuations	(9,896)	3,280
Closing balance	1,685,684	1,695,688
BCMI
Goodwill [Roll Forward]
Opening balance	420,172	417,213
Goodwill relating to acquisitions consummated during the period	0	2,559
Impact of measurement period adjustments	(3)	(542)
Effect of exchange rate fluctuations	(3,061)	942
Closing balance	417,108	420,172
CGRLH
Goodwill [Roll Forward]
Opening balance	607,574	555,130
Goodwill relating to acquisitions consummated during the period	0	52,612
Impact of measurement period adjustments	(28)	(1,372)
Effect of exchange rate fluctuations	(3,726)	1,204
Closing balance	603,820	607,574
HMS
Goodwill [Roll Forward]
Opening balance	667,942	602,123
Goodwill relating to acquisitions consummated during the period	0	68,424
Impact of measurement period adjustments	(77)	(3,739)
Effect of exchange rate fluctuations	(3,109)	1,134
Closing balance	$ 664,756	$ 667,942

Goodwill and Intangible Assets - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Line Items]
Goodwill deductible for tax purposes	$ 277,428		$ 277,428		$ 296,046
Amortization of acquired intangible assets	13,898	$ 10,235	44,624	$ 31,673
Intangible assets write-down	0	674	915	10,647
Internally developed and other intangibles
Goodwill And Intangible Assets Disclosure [Line Items]
Amortization of acquired intangible assets	$ 6,919	$ 6,896	$ 18,841	$ 20,932

Goodwill and Intangible Assets - Schedule of intangible assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 741,983	$ 750,907
Accumulated amortization & Impairment	570,975	514,175
Net	171,008	236,732
Customer-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	474,041	478,189
Accumulated amortization & Impairment	385,494	359,652
Net	88,547	118,537
Marketing-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	96,395	96,561
Accumulated amortization & Impairment	73,113	61,154
Net	23,282	35,407
Technology-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	171,547	152,293
Accumulated amortization & Impairment	112,368	90,866
Net	59,179	61,427
Intangible assets under development
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	0	23,864
Accumulated amortization & Impairment	0	2,503
Net	$ 0	$ 21,361

Goodwill and Intangible Assets - Schedule of impairment charge recorded for various categories of assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	$ 0	$ 347	$ 205	$ 6,117
Impairment of property, plant and equipment	0	327	710	4,530
Grand Total	0	674	915	10,647
Property, Plant and Equipment
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of property, plant and equipment	0	327	710	4,530
Technology-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	0	347	205	4,878
Customer-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	$ 0	$ 0	$ 0	$ 1,239

Short-Term Borrowings - Narrative (Detail) - USD ($)	1 Months Ended	9 Months Ended	12 Months Ended
Short-Term Borrowings - Narrative (Detail) - USD ($)	Aug. 31, 2018	Sep. 30, 2021	Dec. 31, 2020	Aug. 09, 2018	Aug. 08, 2018
Line of Credit Facility [Line Items]
Fund-based and non-fund-based credit facilities limits available		$ 20,209,000	$ 14,311,000
Utilization of credit facility for non fund-based usage		$ 4,206,000	$ 7,809,000
Margin over LIBOR (in percentage)	1.375%	1.375%	1.375%
Commitment fee (in percentage)		0.20%	0.20%
Credit facility, amount utilized		$ 2,017,000	$ 252,347,000
Short-term borrowings		$ 0	$ 250,000,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity				$ 500,000,000	$ 350,000,000
Fund-Based Credit Facility
Line of Credit Facility [Line Items]
Margin over LIBOR (in percentage)		1.375%	1.375%
Non-Fund-Based Credit Facility
Line of Credit Facility [Line Items]
Credit facility, amount utilized		$ 2,017,000	$ 2,347,000

Long-Term Debt - Narrative (Detail) - USD ($)	1 Months Ended	9 Months Ended	12 Months Ended
Long-Term Debt - Narrative (Detail) - USD ($)	Aug. 31, 2018	Sep. 30, 2021	Dec. 31, 2020	Mar. 31, 2021	Nov. 30, 2019	Aug. 09, 2018	Aug. 08, 2018	Mar. 31, 2017
Debt Instrument [Line Items]
Margin over LIBOR (in percentage)	1.375%	1.375%	1.375%
Debt amount outstanding		$ 1,663,864,000	$ 1,340,908,000
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity						$ 500,000,000	$ 350,000,000
Term Loan Credit Facility
Debt Instrument [Line Items]
Debt amortization expense		801,000	1,150,000
Debt amount outstanding		568,699,000	593,850,000
Principal amount of term loan		8,500,000
2015 Facility
Debt Instrument [Line Items]
Margin over LIBOR (in percentage)	1.50%
Credit facility, base rate (in percentage)	0.50%
2015 Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 350,000,000
2015 Facility \| Term Loan Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	800,000,000
Outstanding term loan	550,814,000
Extinguished outstanding term loan	129,186,000
Change to outstanding principal of term loan	0
Amended 2015 Facility
Debt Instrument [Line Items]
Debt amortization expense	$ 2,029,000
Margin over LIBOR (in percentage)	1.375%
Credit facility, base rate (in percentage)	0.375%
Amended 2015 Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 500,000,000
Debt amortization expense	82,000
Amended 2015 Facility \| Term Loan Credit Facility
Debt Instrument [Line Items]
Outstanding term loan	680,000,000
Additional funding	$ 129,186,000
2017 Senior Notes \| Genpact Luxembourg S.r.l.
Debt Instrument [Line Items]
Debt amortization expense		264,000	658,000
Debt amount outstanding		$ 349,736,000	349,342,000
Principal amount of senior notes issued								$ 350,000,000
Interest rate on senior notes (in percentage)		3.70%						3.70%
Total debt issuance cost								$ 2,642,000
2019 Senior Notes \| Genpact Luxembourg S.r.l.
Debt Instrument [Line Items]
Debt amortization expense		$ 1,849,000	2,284,000
Debt amount outstanding		$ 398,152,000	$ 397,716,000
Principal amount of senior notes issued					$ 400,000,000
Interest rate on senior notes (in percentage)		3.375%			3.375%
Total debt issuance cost					$ 2,937,000
Debt instrument redemption price (in percentage)		100.00%
Debt repurchase price as percentage of aggregate principal value upon certain change of controls (in percentage)		101.00%
Maximum increase in downgrade of credit rating of notes to adjust interest rate payable (in percentage)		2.00%
2021 Senior Notes \| Genpact Luxembourg S.r.l.
Debt Instrument [Line Items]
Debt amortization expense		$ 2,723,000
Debt amount outstanding		$ 347,277,000
Principal amount of senior notes issued				$ 350,000,000
Interest rate on senior notes (in percentage)		1.75%		1.75%
Total debt issuance cost				$ 3,032,000

Long-Term Debt - Schedule of maturity profile of term loan outstanding net of debt amortization expense (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total	$ 1,663,864	$ 1,340,908
Term Loan Credit Facility
Debt Instrument [Line Items]
2021	8,386
2022	33,564
2023	526,749
Total	$ 568,699	$ 593,850

Long-Term Debt - Schedule of long term debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Nov. 30, 2019	Mar. 31, 2017
Debt Instrument [Line Items]
Debt amount outstanding	$ 1,663,864		$ 1,340,908
Current portion of long-term debt	383,293		33,537
Long-term debt, less current portion	1,280,571		1,307,371
Total	1,663,864		1,340,908
Genpact Luxembourg S.r.l. \| 2017 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	349,736		349,342
Total	$ 349,736		349,342
Interest rate on senior notes (in percentage)	3.70%				3.70%
Genpact Luxembourg S.r.l. \| 2019 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	$ 398,152		397,716
Total	$ 398,152		397,716
Interest rate on senior notes (in percentage)	3.375%			3.375%
Genpact Luxembourg S.r.l. \| 2021 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	$ 347,277
Total	$ 347,277
Interest rate on senior notes (in percentage)	1.75%	1.75%
Credit facility, Net of Amortization Expenses
Debt Instrument [Line Items]
Debt amount outstanding	$ 568,699		593,850
Total	568,699		593,850
2017 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	349,736		349,342
Total	349,736		349,342
2019 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	398,152		397,716
Total	398,152		397,716
2021 Senior Notes
Debt Instrument [Line Items]
Debt amount outstanding	347,277		0
Total	$ 347,277		$ 0

Accrued Expenses and Other Current Liabilities - Schedule of accrued expenses and other current liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued expenses	$ 153,186	$ 150,390
Accrued employee cost	250,136	286,399
Earn-out consideration	3,051	2,651
Statutory liabilities	68,203	104,768
Retirement benefits	1,301	1,967
Compensated absences	27,972	28,635
Derivative instruments	15,314	20,172
Contract liabilities	150,322	154,717
Finance lease liability	21,348	18,066
Other liabilities	45,147	39,004
Accrued expenses and other current liabilities, net	$ 735,980	$ 806,769
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities, net	Accrued expenses and other current liabilities, net

Other Liabilities - Schedule of other liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued employee cost	$ 22,154	$ 19,797
Earn-out consideration	3,105	5,621
Retirement benefits	13,123	11,947
Compensated absences	52,774	47,656
Derivative instruments	7,514	20,809
Contract liabilities (Note 20)	84,170	68,760
Finance lease liability	20,407	30,958
Others	44,495	32,850
Other Liabilities	$ 247,742	$ 238,398
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities

Employee Benefit Plans - Schedule of net defined benefit plan costs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Retirement Benefits [Abstract]
Service costs	$ 3,454	$ 2,733	$ 10,528	$ 8,402
Interest costs	1,363	1,267	4,135	3,898
Amortization of actuarial loss	558	615	1,704	1,883
Expected return on plan assets	(1,534)	(1,108)	(4,605)	(3,406)
Net defined benefit plan costs	$ 3,841	$ 3,507	$ 11,762	$ 10,777

Employee Benefit Plans - Schedule of amounts contributed to defined contribution plans in various jurisdictions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	$ 29,966	$ 24,182	$ 86,893	$ 70,323
India
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	9,637	7,289	27,445	22,362
U.K.
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	5,034	4,547	14,352	13,977
China
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	6,362	4,503	18,433	11,243
Other Regions
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	3,913	3,189	11,155	8,806
U.S.
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plans, contributed amount	$ 5,020	$ 4,654	$ 15,508	$ 13,935

Employee Benefit Plans - Narrative (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jul. 01, 2018	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred compensation plan liability		$ 35,715		$ 35,715		$ 26,390
Cash surrender value of policies		36,306		36,306		$ 26,832
Change in fair value of plan assets		(84)	$ 1,204	2,658	$ 1,972
Change in fair value of deferred compensation liabilities		$ (159)	$ 1,085	$ 2,526	$ 1,942
U.S.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Vesting percentage of participants (in percentage)	100.00%
Employer discretionary vesting period	2 years
Earnings receivable minimum term	2 years
Earnings receivable lump sum or annual installment maximum terms	15 years
One-Year Anniversary of Approval of Contribution \| U.S.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Employer discretionary vesting percentage (in percentage)	50.00%
Two-Year Anniversary of Approval of Contribution \| U.S.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Employer discretionary vesting percentage (in percentage)	50.00%
Minimum \| U.S.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Individual qualifying base compensation (in percentage)	1.00%
Individual qualifying bonus compensation (in percentage)	1.00%
Maximum \| U.S.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Individual qualifying base compensation (in percentage)	80.00%
Individual qualifying bonus compensation (in percentage)	100.00%

Stock-Based Compensation - Narrative (Detail) - USD ($)			3 Months Ended		9 Months Ended		12 Months Ended
Stock-Based Compensation - Narrative (Detail) - USD ($)	Apr. 05, 2019	Apr. 11, 2012	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2012	May 09, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation cost			$ 21,150,000	$ 19,180,000	$ 57,554,000	$ 54,835,000
Options granted, contractual period, years					10 years
Options granted (in shares)					1,831,180	431,924
Unrecognized stock-based compensation cost for options			26,843,000		$ 26,843,000
Restrcited Stock Unit vesting right (in shares)					1
Restrcited Stock Unit vesting right, fair value (in shares)					1
Performance Units vesting right (in shares)					1
Performance Units vesting right, fair value (in shares)					1
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					5 years
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining requisite vesting period					3 years 3 months 18 days
Restricted Share Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining requisite vesting period					2 years 4 months 24 days
Shares to be issued on vested awards other than options (in shares)							34,092
Unrecognized stock-based compensation cost			21,417,000		$ 21,417,000
Restricted Share Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					3 months
Restricted Share Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					4 years
Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining requisite vesting period					1 year 10 months 24 days
Unrecognized stock-based compensation cost			$ 65,843,000		$ 65,843,000
Performance Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					6 months
Performance Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period					3 years
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share allowed to eligible employees to purchase through payroll deductions (in percentage)					90.00%
Maximum percentage of employee's base salary allowed to be purchased (in percentage)			15.00%		15.00%
Maximum dollar amount of common shares allowed to be purchased					$ 25,000
Common shares reserved for issuance (in shares)			4,200,000		4,200,000
Issuance of common shares under the employee stock purchase plan (in shares)					216,378	241,953
Compensation expense for ESPP			$ 335,000	$ 307,000	$ 1,050,000	$ 983,000
2007 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amended Omnibus Plan, increase in number of common shares authorized for issuance (in shares)	8,000,000	5,593,200						8,858,823
Number of common shares authorized for issuance (in shares)	23,000,000	15,000,000
2017 Omnibus Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares authorized for issuance (in shares)									15,000,000

Stock-Based Compensation - Schedule of significant assumptions used in determining fair value of options granted (Detail)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (in percentage)		0.89%
Expected life (in months)	84 years	84 months
Risk-free rate of interest (in percentage)		1.50%
Volatility (in percentage)		20.96%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (in percentage)	0.84%
Risk-free rate of interest (in percentage)	1.12%
Volatility (in percentage)	26.05%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (in percentage)	1.08%
Risk-free rate of interest (in percentage)	1.37%
Volatility (in percentage)	26.18%

Stock-Based Compensation - Schedule of stock option activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Shares arising out of options
Outstanding, shares arising out of options, beginning balance	7,347,241
Granted, shares arising out of options (in shares)	1,831,180	431,924
Forfeited, shares arising out of options	(25,000)
Expired, shares arising out of options	0
Exercised, shares arising out of options	(1,020,125)
Outstanding, shares arising out of options, ending balance	8,133,296		7,347,241
Vested and expected to vest thereafter, shares arising out of options	7,485,096
Vested and exercisable, shares arising out of options	3,242,333
Weighted average grant-date fair value of options granted during the period	$ 11.35
Weighted average exercise price
Outstanding weighted average exercise price, beginning balance (in usd per share)	26.41
Granted, weighted average exercise price (in usd per share)	43.98
Forfeited, weighted average exercise price (in usd per share)	31.50
Expired, weighted average exercise price (in usd per share)	0
Exercised, weighted average exercise price (in usd per share)	20.50
Outstanding weighted average exercise price, ending balance (in usd per share)	31.10		$ 26.41
Vested and expected to vest thereafter, weighted average exercise price (in usd per share)	30.24
Vested and exercisable, weighted average exercise price (in usd per share)	$ 23.94
Weighted average remaining contractual life (years)
Outstanding weighted average remaining contractual life (years)	6 years 3 months 18 days		5 years 8 months 12 days
Vested and expected to vest thereafter, weighted average remaining contractual life (years)	6 years 3 months 18 days
Vested and exercisable, weighted average remaining contractual life (years)	3 years 8 months 12 days
Aggregate intrinsic value
Outstanding aggregate intrinsic value	$ 134,565		$ 0
Exercised, aggregate intrinsic value	26,085
Vested and expected to vest thereafter, aggregate intrinsic value	130,045
Vested and exercisable, aggregate intrinsic value	$ 76,436

Stock-Based Compensation - Schedule of restricted share units activity (Detail) - Restricted Share Units (RSUs) - $ / shares	9 Months Ended
	Sep. 30, 2021
Number of Restricted Share Units
Outstanding number of shares (Units), beginning balance	860,308
Granted (in shares)	466,702
Vested (in shares)	(351,926)
Forfeited (in shares)	(54,514)
Outstanding number of shares (Units), ending balance	920,570
Expected to vest, number of shares (Units)	797,265
Weighted Average Grant Date Fair Value
Outstanding weighted average grant date fair value, beginning balance (in usd per share)	$ 36.44
Granted, weighted average grant date fair value (in usd per share)	44.00
Vested, weighted average grant date fair value (in usd per share)	31.01
Forfeited, weighted average grant date fair value (in usd per share)	37.39
Outstanding weighted average grant date fair value, ending balance (in usd per share)	$ 42.29
RSUs settled on vesting by issuing shares (net of minimum tax withholding)	230,284

Stock-Based Compensation - Schedule of performance units activity (Detail) - Performance Units	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Number of Performance Units
Outstanding number of shares (Units), beginning balance	4,876,196
Granted, number of shares (Units)	1,335,917
Vested, number of shares (Units)	(1,784,140)
Forfeited, number of shares (Units)	(201,008)
Adjustment upon final determination of level of performance goal achievement (Units)	9,625
Outstanding number of shares (Units), ending balance	4,236,590
Expected to vest, number of shares (Units)	4,018,807
Weighted Average Grant Date Fair Value
Outstanding weighted average grant date fair value, beginning balance (in usd per share) \| $ / shares	$ 34.56
Granted, weighted average grant date fair value (in usd per share) \| $ / shares	44.04
Vested, weighted average grant date fair value (in usd per share) \| $ / shares	30.66
Forfeited, weighted average grant date fair value (in usd per share) \| $ / shares	39.76
Adjustment upon final determination of level of performance goal achievement (in usd per share) \| $ / shares	42.48
Outstanding weighted average grant date fair value, ending balance (in usd per share) \| $ / shares	$ 38.97
Maximum shares eligible to receive
Outstanding maximum shares eligible to receive, beginning balance	4,876,196
Granted, maximum shares eligible to receive	2,671,834
Vested, maximum shares eligible to receive	(1,784,140)
Forfeited, maximum shares eligible to receive	(239,736)
Adjustment upon final determination of level of performance goal achievement	9,625
Outstanding maximum shares eligible to receive, ending balance	5,533,779
Net settlement on vesting of performance units (in shares)	1,102,440

Capital Stock (Details) - USD ($)									3 Months Ended		9 Months Ended		12 Months Ended
Capital Stock (Details) - USD ($)	Sep. 24, 2021	Jun. 23, 2021	Mar. 19, 2021	Feb. 09, 2021	Sep. 23, 2020	Jun. 26, 2020	Mar. 18, 2020	Feb. 07, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Stock repurchase authorized amount									$ 1,750,000,000		$ 1,750,000,000
Shares repurchased and retired (in shares)											3,592,409	1,781,978
Common stock shares repurchased price per share (in usd per share)											$ 40.96	$ 41.28
Aggregate amount of common stock shares repurchased											$ 147,152,000	$ 73,552,000
Expenses related to stock purchases											72,000	$ 36,000
Stock repurchase program, remaining authorized repurchase amount									$ 489,846,000		$ 489,846,000
Increase in quarterly cash dividend (in percentage)				10.00%				15.00%
Quarterly dividend declared (in usd per share)				$ 0.1075				$ 0.0975	$ 0.1075	$ 0.0975	$ 0.3225	$ 0.2925	$ 0.0975	$ 0.085
Annual dividend								$ 0.39					$ 0.39	$ 0.34
Dividends paid per share	$ 0.1075	$ 0.1075	$ 0.1075		$ 0.0975	$ 0.0975	$ 0.0975
Initial dividend paid	$ 20,213,000	$ 20,133,000	$ 20,115,000		$ 18,637,000	$ 18,595,000	$ 18,543,000
Planned annual dividend				$ 0.43

Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
Earnings Per Share (Details) - shares	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Number of stock awards outstanding but not included in the computation of diluted earnings per common share	1,556,671	675,214	1,698,735	1,432,789

Earnings Per Share - Schedule of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share (Abstract)
Net income available to Genpact Limited common shareholders	$ 102,386	$ 85,435	$ 296,363	$ 233,294
Weighted average number of common shares used in computing basic earnings per common share (in shares)	187,856,026	190,949,108	187,945,234	190,705,671
Dilutive effect of stock-based awards (in shares)	5,303,903	5,706,032	4,940,018	5,394,396
Weighted average number of common shares used in computing dilutive earnings per common share ( in shares)	193,159,929	196,655,140	192,885,252	196,100,067
Earnings per common share attributable to Genpact Limited common shareholders, basic (USD per share)	$ 0.55	$ 0.45	$ 1.58	$ 1.22
Earnings per common share attributable to Genpact Limited common shareholders, diluted (USD per share)	$ 0.53	$ 0.43	$ 1.54	$ 1.19

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Segment Reporting - Revenues and adjusted income from operations by reportable segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Net revenues	$ 1,015,737	$ 935,523		$ 2,949,934	$ 2,758,809
Adjusted income from operations	168,942	159,973		508,621	441,193
Stock-based compensation	(21,485)	(19,487)		(58,604)	(55,818)
Amortization and impairment of acquired intangible assets (other than included above)	(13,688)	(9,995)		(43,977)	(32,218)
Foreign exchange gains (losses), net	2,733	(2,402)		11,529	11,611
Interest income (expense), net	(12,765)	(12,757)		(38,198)	(38,072)
Restructuring expenses		(4,889)	$ (26,547)		(26,547)
Income tax expense	(21,351)	(25,008)		(83,008)	(66,855)
Net income	102,386	85,435		296,363	233,294
Operating Segments
Segment Reporting Information [Line Items]
Net revenues	1,013,331	941,104		2,933,538	2,781,930
Adjusted income from operations	164,458	147,608		487,534	402,320
Operating Segments \| BCMI
Segment Reporting Information [Line Items]
Net revenues	258,521	283,806		750,589	805,807
Adjusted income from operations	32,514	38,771		98,972	88,888
Operating Segments \| CGRLH
Segment Reporting Information [Line Items]
Net revenues	388,069	318,290		1,101,182	930,203
Adjusted income from operations	63,681	47,847		184,647	134,691
Operating Segments \| HMS
Segment Reporting Information [Line Items]
Net revenues	366,741	339,008		1,081,767	1,045,920
Adjusted income from operations	68,263	60,990		203,915	178,741
Others
Segment Reporting Information [Line Items]
Net revenues	2,406	(5,581)		16,396	(23,121)
Adjusted income from operations	$ 4,484	$ 12,365		$ 21,087	$ 38,873

Net Revenues - Schedule of net revenues disaggregated by customer (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Total net revenues	$ 1,015,737	$ 935,523	$ 2,949,934	$ 2,758,809
Global clients
Segment Reporting Information [Line Items]
Total net revenues	920,628	824,175	2,667,036	2,409,047
GE
Segment Reporting Information [Line Items]
Total net revenues	$ 95,109	$ 111,348	$ 282,898	$ 349,762

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Net Revenues - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Net Revenues - Narrative (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues [Abstract]
Billing cycle period			30 days
Revenue recognized	$ 60,756	$ 51,201	$ 128,628	$ 83,189

Net Revenues - Schedule of details of contract balances (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Revenues [Abstract]
Contract assets	$ 15,973	$ 15,805
Deferred transition revenue	156,308	130,804
Advance from customers	$ 78,184	$ 92,673

Net Revenues - Schedule of estimated revenue expected to be recognized in the future related to remaining performance obligation (Detail) $ in Thousands	Sep. 30, 2021 USD ($)
Revenues [Abstract]
Revenue, Remaining Performance Obligation	$ 234,492
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenues [Abstract]
Revenue, Remaining Performance Obligation	$ 150,322
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenues [Abstract]
Revenue, Remaining Performance Obligation	$ 67,690
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenues [Abstract]
Revenue, Remaining Performance Obligation	$ 13,997
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenues [Abstract]
Revenue, Remaining Performance Obligation	$ 2,483
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period

Net Revenues - Schedule of contract cost assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Opening balance			$ 225,897
Closing balance	$ 240,378		240,378
Sales Incentive Programs
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Opening balance	31,559	$ 32,182	33,390	$ 35,366
Closing balance	31,058	30,047	31,058	30,047
Amortization	5,041	6,094	14,576	14,329
Process Transition Activities
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Opening balance	210,747	178,570	192,507	170,132
Closing balance	209,320	181,747	209,320	181,747
Amortization	$ 23,028	$ 17,935	$ 58,644	$ 50,397

Other operating (income) expense, net - Schedule of other operating (income) expense, net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Write-down of intangible assets and property, plant and equipment	$ 0	$ 674	$ 915	$ 10,647
Write-down of operating lease right-of-use assets and other assets	0	0	0	10,244
Other operating (income) expense	(93)	(4,192)	(1,132)	(5,900)
Other operating (income) expense, net	$ (93)	$ (3,518)	$ (217)	$ 14,991

Interest Income (Expense), Net - Schedule of interest income (expense), net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Banking and Thrift, Interest [Abstract]
Interest income	$ 2,068	$ 1,828	$ 4,544	$ 5,229
Interest expense	(14,833)	(14,585)	(42,742)	(43,301)
Interest income (expense), net	$ (12,765)	$ (12,757)	$ (38,198)	$ (38,072)

Income taxes - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Income taxes - Narrative (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective tax rate (in percentage)	17.30%	22.60%	21.90%	22.30%
Unrecognized tax benefits	$ 28,385		$ 28,385		$ 34,300
Unrecognized tax benefits that would impact effective tax rate	28,385		28,385
Unrecognized tax benefits, interest on income taxes accrued	2,883		2,883		6,369
Accrued penalties	$ 869		869		900
Unrecognized tax benefits, excluding exchange rate differences for interest recognized			$ (3,400)		$ 662

Income taxes - Schedule of activities related to unrecognized tax benefits for uncertain tax positions (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 34,300
Increase related to prior year tax positions, including recorded in acquisition accounting	686
Decrease related to settlements with tax authorities	(5,640)
Decrease related to prior year tax position due to lapse of applicable statute of limitation	(175)
Effect of exchange rate changes	(786)
Ending balance	$ 28,385

Other income (expense), net - Schedule of other income (expense), net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Nonoperating Income (Expense) [Abstract]
Other income (expense)	$ 1,480	$ 960	$ 8,966	$ 946
Other income (expense), net	$ 1,480	$ 960	$ 8,966	$ 946

Commitments and Contingencies (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2016	Jun. 30, 2020
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credits, outstanding	$ 6,223	$ 10,156
Income tax examination, assessed tax, affiliate			$ 110,155
Income tax examination, amount yet to be refunded to the Company	26,839
Affiliated Entity
Commitments And Contingencies [Line Items]
Refunds challenged by taxing authority, amount				$ 21,727
Capital Addition Purchase Commitments
Commitments And Contingencies [Line Items]
Commitments and contingencies	$ 9,609	$ 5,128

Restructuring (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
Restructuring (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 4,889		$ 26,547	$ 26,547
Severance charge			15,395
Property, Plant and Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charge			908
Non-cash Charge
Restructuring Cost and Reserve [Line Items]
Restructuring charge			$ 11,152
Office Premises and Employee Severance Charge
Restructuring Cost and Reserve [Line Items]
Restructuring charge		$ 21,658
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 4,889

Subsequent Events (Detail) - $ / shares				3 Months Ended		9 Months Ended		12 Months Ended
Subsequent Events (Detail) - $ / shares	Oct. 14, 2021	Feb. 09, 2021	Feb. 07, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Quarterly dividend declared (in usd per share)		$ 0.1075	$ 0.0975	$ 0.1075	$ 0.0975	$ 0.3225	$ 0.2925	$ 0.0975	$ 0.085
Fourth Quarter Dividend \| Subsequent Event
Subsequent Event [Line Items]
Quarterly dividend declared (in usd per share)	$ 0.1075