CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (51,122)	$ (159,068)	$ (188,140)	$ (249,461)
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale securities	244	(988)	1,331	(3,079)
Net foreign currency translation loss	(1,013)	(671)	(874)	(955)
Other comprehensive income (loss)	(769)	(1,659)	457	(4,034)
Comprehensive loss	$ (51,891)	$ (160,727)	$ (187,683)	$ (253,495)