Derivatives and Hedge Accounting - Location of Gain or Loss Recognized (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Cost of revenues	[1]	$ 251,469	$ 207,516
General and administrative expenses		46,746	39,945
Selling and marketing expenses		29,493	24,170
Depreciation and amortization expense		13,487	13,602
Interest expense		3,385	876
Income before income tax expense and earnings from equity affiliates		59,323	47,266
Income tax effects on above		(8,058)	(11,202)
Net income		51,331	36,178
Foreign exchange gain, net		105	1,756
Gain/(loss) on foreign currency exchange contracts | Derivatives in cash flow hedging relationships | Cash flow hedge
Derivative Instruments, Gain (Loss) [Line Items]
Cost of revenues		(2,755)	1,583
General and administrative expenses		(242)	294
Selling and marketing expenses		(19)	14
Depreciation and amortization expense		(123)	98
Interest expense		74	0
Income before income tax expense and earnings from equity affiliates		(3,065)	1,989
Income tax effects on above		534	(515)
Net income		(2,531)	1,474
Gain/(loss) on foreign currency exchange contracts | Derivatives not designated as hedging instruments | Fair value hedge
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange gain, net		$ 2,528	$ (899)

[1] Exclusive of depreciation and amortization expense.