Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income attributable to Genpact Limited shareholders	$ 269,684	$ 239,817	$ 192,002
Net income (loss) attributable to non-controlling interest/redeemable non-controlling interest	(2,137)		169
Net income (loss)	267,547	239,817	192,171
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	54,553	54,286	51,064
Amortization of debt issuance costs (including loss on extinguishment of debt)	1,531	13,546	3,240
Amortization of acquired intangible assets	27,183	28,513	28,543
Intangible assets write-down	11,195	10,714
Reserve for doubtful receivables	7,282	2,449	3,107
Unrealized (gain) loss on revaluation of foreign currency asset/liability	1,717	(4,999)	9,419
Equity-method investment activity, net	7,698	10,800	4,795
Excess tax benefit on stock-based compensation	(1,004)	(6,560)	0
Stock-based compensation expense	25,113	24,976	28,065
Deferred income taxes	30,454	(18,713)	(12,252)
Gain on divestiture	(5,214)
Others, net	(41)	(238)	1,291
Change in operating assets and liabilities:
Increase in accounts receivable	(48,612)	(78,923)	(24,088)
Increase in prepaid expenses, other current assets and other assets	(62,852)	(32,602)	(31,657)
Increase (decrease) in accounts payable	(463)	(3,988)	(7,268)
Increase (decrease) in accrued expenses, other current liabilities and other liabilities	27,977	69,606	27,500
Increase (decrease) in income taxes payable	704	18,757	(2,092)
Net cash provided by operating activities	345,772	327,441	271,838
Investing activities
Purchase of property, plant and equipment	(88,772)	(62,173)	(62,577)
Proceeds from sale of property, plant and equipment	547	1,486	564
Investment in equity affiliates	(9,620)	(18,423)
Short-term deposits placed			(25,000)
Redemption of short-term deposits			25,000
Payment for business acquisitions, net of cash acquired	(45,162)	(21,363)	(130,809)
Proceeds from divestiture of business, net of cash divested	17,242
Net cash used for investing activities	(125,765)	(100,473)	(192,822)
Financing activities
Repayment of capital lease obligations	(1,793)	(2,035)	(2,095)
Payment of debt issuance and refinancing costs		(6,584)
Proceeds from long-term debt		800,000
Repayment of long-term debt	(40,000)	(684,875)	(6,750)
Proceeds from short-term borrowings	200,000	1,451,500	195,000
Repayment of short-term borrowings	(61,500)	(1,565,000)	(60,000)
Proceeds from issuance of common shares under stock-based compensation plans	18,228	16,088	30,144
Payment for net settlement of stock-based awards	(769)	(7,194)	(25,975)
Payment of earn-out/deferred consideration	(1,485)	(230)	(1,088)
Distribution to non-controlling interest			(1,487)
Payment for stock purchased and retired	(345,200)	(226,917)	(302,625)
Payment for expenses related to stock purchase	(279)	(197)	(2,543)
Excess tax benefit on stock-based compensation		6,560
Net cash used for financing activities	(232,798)	(218,884)	(177,419)
Effect of exchange rate changes	(15,493)	(18,965)	(11,085)
Net increase (decrease) in cash and cash equivalents	(12,791)	8,084	(98,403)
Cash and cash equivalents at the beginning of the period	450,907	461,788	571,276
Cash and cash equivalents at the end of the period	422,623	450,907	461,788
Supplementary information
Cash paid during the period for interest	17,860	20,950	27,175
Cash paid during the period for income taxes	46,731	72,102	83,803
Property, plant and equipment acquired under capital lease obligations	$ 2,206	$ 1,656	$ 2,176