CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,194,861	$ 881,366	$ 2,366,475	$ 1,662,141
Operating expenses:
Cost of revenues (exclusive of depreciation and amortization)	846,323	583,728	1,627,159	1,103,056
Selling, general and administrative expenses	232,527	151,910	469,804	288,299
Depreciation and amortization expense	22,991	20,454	47,250	38,261
Income from operations	93,020	125,274	222,262	232,525
Interest and other income, net	1,579	2,580	1,414	7,954
Foreign exchange loss	(85,941)	(4,693)	(108,726)	(2,394)
Income before provision for income taxes	8,658	123,161	114,950	238,085
(Benefit from)/ provision for income taxes	(9,946)	8,490	6,627	14,368
Net income	$ 18,604	$ 114,671	$ 108,323	$ 223,717
Net income per share:
Basic (in usd per share)	$ 0.33	$ 2.03	$ 1.90	$ 3.97
Diluted (in usd per share)	$ 0.32	$ 1.94	$ 1.84	$ 3.80
Shares used in calculation of net income per share:
Basic (in shares)	57,240	56,463	57,078	56,317
Diluted (in shares)	59,020	59,011	58,981	58,896