CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income	$ 37,992	$ 53,535
Other comprehensive loss:
Foreign currency translation loss	(782)	(5,308)
Unrealized loss on marketable securities, net of tax	(3,093)	(32)
Defined benefit pension gain, net of tax	282	342
Other comprehensive loss	(3,593)	(4,998)
Comprehensive income	$ 34,399	$ 48,537