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, 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	(65,165)	(65,165)
Change in unrealized gains (losses), net of tax	0	0	(15,756)	0	(15,756)
Foreign currency translation	0	0	(154)	0	(154)
Issuance of common stock in connection with employee stock plans	$ 1	1,848	0	0	1,849
Issuance of common stock in connection with employee stock plans (in shares)	847
Stock-based compensation expense	$ 0	26,236	0	0	26,236
Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options	$ 0	(9,173)	0	0	(9,173)
Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)	(304)
Balance at Mar. 31, 2022	$ 142	1,983,078	(48,578)	(1,225,068)	709,574
Balance (in shares) at Mar. 31, 2022	141,753
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 gains (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