CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 6,113	$ 19,631
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(1,182)	(355)
Unrealized holding losses on short-term investments arising during period	(2)	(6)
Other comprehensive loss, net of tax	(1,184)	(361)
Total comprehensive income, net of tax	$ 4,929	$ 19,270