CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 545,248	$ 472,224	$ 276,580
Unrealized gain on derivatives designated and qualifying as cash flow hedges	2,627	5,815	5,607
Defined pension plan activity	(215)	11,450	88,539
Currency translation adjustment	43,139	(35,084)	(50,514)
Other comprehensive income (loss):	45,551	(17,819)	43,632
Comprehensive income	$ 590,799	$ 454,405	$ 320,212