Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 56,388	$ 57,006
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	16,437	(9,182)
Actuarial gain on retirement plan, net of tax effect of $(5) and $(8), respectively	13	21
Other comprehensive income, net of taxes	16,450	(9,161)
Comprehensive income	$ 72,838	$ 47,845