CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 417,083	$ 419,416	$ 481,652
Other comprehensive income/(loss):
Change in foreign currency translation adjustments, net of tax	58,179	(49,033)	(24,579)
Change in unrealized (loss)/gain on hedging instruments, net of tax	(487)	11,723	(7,059)
Defined benefit pension plans - actuarial (loss)/gain, net of tax	(1,411)	(3,804)	2,943
Other comprehensive income/(loss)	56,281	(41,114)	(28,695)
Comprehensive income	$ 473,364	$ 378,302	$ 452,957