CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2021	$ 141	$ 1,964,167	$ (32,668)	$ (1,159,903)	$ 771,737
Balance (in shares) at Dec. 31, 2021	141,210
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(269,722)	(269,722)
Change in unrealized gains (losses), net of tax	0	0	(24,395)	0	(24,395)
Foreign currency translation	0	0	(417)	0	(417)
Issuance of common stock in connection with employee stock plans, net	$ 1	6,372	0	0	6,373
Issuance of common stock in connection with employee stock plans, net (in shares)	1,194
Stock-based compensation expense	$ 0	100,264	0	0	100,264
Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options	$ 0	(10,953)	0	0	(10,953)
Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)	(346)
Balance at Dec. 31, 2022	$ 142	2,059,850	(57,480)	(1,429,625)	572,887
Balance (in shares) at Dec. 31, 2022	142,058
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(366,286)	(366,286)
Change in unrealized gains (losses), net of tax	0	0	24,484	0	24,484
Foreign currency translation	0	0	351	0	351
Issuance of common stock in connection with employee stock plans, net	$ 2	49,439	0	0	49,441
Issuance of common stock in connection with employee stock plans, net (in shares)	2,283
Stock-based compensation expense	$ 0	105,809	0	0	105,809
Balance at Dec. 31, 2023	$ 144	2,215,098	(32,645)	(1,795,911)	386,686
Balance (in shares) at Dec. 31, 2023	144,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(453,897)	(453,897)
Change in unrealized gains (losses), net of tax	0	0	2,107	0	2,107
Foreign currency translation	0	0	(273)	0	(273)
Issuance of common stock in connection with employee stock plans, net	$ 2	33,607	0	0	33,609
Issuance of common stock in connection with employee stock plans, net (in shares)	2,068
Issuance of public common stock, net	$ 12	489,108	0	0	489,120
Issuance of public common stock, net (in shares)	11,500
Stock-based compensation expense	$ 0	130,999	0	0	130,999
Balance at Dec. 31, 2024	$ 158	$ 2,868,812	$ (30,811)	$ (2,249,808)	$ 588,351
Balance (in shares) at Dec. 31, 2024	157,909