CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance (in shares) at Dec. 31, 2021		120,182
Beginning balance at Dec. 31, 2021	$ 588,203	$ 1,202	$ 6,058,453	$ (33,259)	$ (5,438,193)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options, net of tax withholdings (in shares)		524
Exercise of common stock options, net of tax withholdings	28,059	$ 5	28,054
Issuance of common stock under equity plans (in shares)		23
Stock-based compensation expense	30,051		30,051
Other comprehensive income (loss)	(4,806)			(4,806)
Net loss	(240,341)				(240,341)
Balance (in shares) at Mar. 31, 2022		120,729
Ending balance at Mar. 31, 2022	$ 401,166	$ 1,207	6,116,558	(38,065)	(5,678,534)
Balance (in shares) at Dec. 31, 2022	123,925	123,925
Beginning balance at Dec. 31, 2022	$ (158,223)	$ 1,240	6,454,540	(44,654)	(6,569,349)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options, net of tax withholdings (in shares)		269
Exercise of common stock options, net of tax withholdings	26,418	$ 3	26,415
Issuance of common stock under equity plans (in shares)		47
Issuance of common stock under equity plans	0
Stock-based compensation expense	41,136		41,136
Other comprehensive income (loss)	5,530			5,530
Net loss	$ (174,101)				(174,101)
Balance (in shares) at Mar. 31, 2023	124,241	124,241
Ending balance at Mar. 31, 2023	$ (259,240)	$ 1,243	$ 6,522,091	$ (39,124)	$ (6,743,450)