Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 35,230	$ (1,387)	$ (19,712)
Other comprehensive income (loss), net of tax:
Change in foreign currency translation	184	(922)	(147)
Change in fair value of marketable securities	(105)	(3)	1,428
Total other comprehensive income (loss)	79	(925)	1,281
Comprehensive income (loss)	35,309	(2,312)	(18,431)
Comprehensive (income) loss attributable to redeemable noncontrolling interests	(5,938)	(2,523)
Comprehensive income (loss) attributable to common stockholders	$ 29,371	$ (4,835)	$ (18,431)