Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (54,712)	$ (5,295)	$ (174,766)	$ (38,407)
Other comprehensive income (loss), net of tax:
Changes in unrealized gain on available for sale securities	(5)	0	6	0
Foreign currency translation adjustments	(12)	39	(9)	5
Total other comprehensive income (loss), net of tax	(17)	39	(3)	5
Comprehensive loss	$ (54,729)	$ (5,256)	$ (174,769)	$ (38,402)