CONDENSED 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, 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	(124,323)	(124,323)
Change in unrealized losses, net of tax	0	0	8,393	0	8,393
Foreign currency translation	0	0	104	0	104
Issuance of common stock in connection with employee stock plans	$ 1	2,560	0	0	2,561
Issuance of common stock in connection with employee stock plans (in shares)	965
Stock-based compensation expense	$ 0	26,948	0	0	26,948
Balance at Mar. 31, 2023	$ 143	2,089,358	(48,983)	(1,553,948)	486,570
Balance (in shares) at Mar. 31, 2023	143,023
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	(142,803)	(142,803)
Change in unrealized losses, net of tax	0	0	(2,205)	0	(2,205)
Foreign currency translation	0	0	(114)	0	(114)
Issuance of common stock in connection with employee stock plans	$ 2	23,609	0	0	23,611
Issuance of common stock in connection with employee stock plans (in shares)	1,504
Stock-based compensation expense	$ 0	31,340	0	0	31,340
Balance at Mar. 31, 2024	$ 146	$ 2,270,047	$ (34,964)	$ (1,938,714)	$ 296,515
Balance (in shares) at Mar. 31, 2024	145,845