Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional paid in capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Balances at Dec. 31, 2021	$ 764,298	$ 4	$ 928,095	$ (2,569)	$ (161,232)
Balances (Shares) at Dec. 31, 2021		42,831
Vesting of restricted stock units, net of tax	(284)		(284)
Vesting of restricted stock units, net of tax, shares		55
Exercise of stock options, net of tax	1,844		1,844
Exercise of stock options, net of tax, shares		263
Issuance of common stock under employee stock purchase plan	622		622
Issuance of common stock under employee stock purchase plan, shares		22
Stock-based compensation expense	21,135		21,135
Unrealized gain (loss) on available-for-sale securities, net	(12,194)			(12,194)
Net loss	(144,902)				(144,902)
Balances at Jun. 30, 2022	630,519	$ 4	951,412	(14,763)	(306,134)
Balances (Shares) at Jun. 30, 2022		43,171
Balances at Mar. 31, 2022	689,669	$ 4	939,570	(11,950)	(237,955)
Balances (Shares) at Mar. 31, 2022		42,982
Vesting of restricted stock units, net of tax, shares		3
Exercise of stock options, net of tax	1,507		1,507
Exercise of stock options, net of tax, shares		186
Stock-based compensation expense	10,335		10,335
Unrealized gain (loss) on available-for-sale securities, net	(2,813)			(2,813)
Net loss	(68,179)				(68,179)
Balances at Jun. 30, 2022	630,519	$ 4	951,412	(14,763)	(306,134)
Balances (Shares) at Jun. 30, 2022		43,171
Balances at Dec. 31, 2022	516,195	$ 4	973,145	(15,401)	(441,553)
Balances (Shares) at Dec. 31, 2022		43,299
Vesting of restricted stock units, net of tax	(419)		(419)
Vesting of restricted stock units, net of tax, shares		127
Exercise of stock options, net of tax	1,220		1,220
Exercise of stock options, net of tax, shares		165
Issuance of common stock under employee stock purchase plan	583		583
Issuance of common stock under employee stock purchase plan, shares		30
Stock-based compensation expense	21,710		21,710
Unrealized gain (loss) on available-for-sale securities, net	5,303			5,303
Net loss	(138,737)				(138,737)
Balances at Jun. 30, 2023	405,855	$ 4	996,239	(10,098)	(580,290)
Balances (Shares) at Jun. 30, 2023		43,621
Balances at Mar. 31, 2023	465,139	$ 4	984,986	(11,622)	(508,229)
Balances (Shares) at Mar. 31, 2023		43,465
Vesting of restricted stock units, net of tax, shares		28
Exercise of stock options, net of tax	749		749
Exercise of stock options, net of tax, shares		128
Stock-based compensation expense	10,504		10,504
Unrealized gain (loss) on available-for-sale securities, net	1,524			1,524
Net loss	(72,061)				(72,061)
Balances at Jun. 30, 2023	$ 405,855	$ 4	$ 996,239	$ (10,098)	$ (580,290)
Balances (Shares) at Jun. 30, 2023		43,621