CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (510,485)	$ (352,317)	$ (307,077)	$ (575,036)
Other comprehensive income (loss):
Net unrealized losses on marketable securities available-for-sale, net of reclassifications	0	0	0	(9)
Foreign currency translation adjustment	(9,558)	4,527	(9,517)	(2,845)
Other comprehensive income (loss)	(9,558)	4,527	(9,517)	(2,854)
Comprehensive loss	$ (520,043)	$ (347,790)	$ (316,594)	$ (577,890)