Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
COMPREHENSIVE INCOME (LOSS):
Net income	$ 175,821	$ 149,213	$ 344,060	$ 259,811
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	(24,048)	4,398	(25,016)	(4,439)
Foreign defined benefit plan adjustments, net of tax	15	39	31	79
Total other comprehensive income (loss)	(24,033)	4,437	(24,985)	(4,360)
Total comprehensive income (loss)	$ 151,788	$ 153,650	$ 319,075	$ 255,451