Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid- In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2020	$ 610,905	$ 7	$ 913,354	$ 46	$ (302,502)
Beginning balance (in shares) at Dec. 31, 2020		66,194
Share-based compensation expense	11,068		11,068
Issuance of common stock under equity plans	1,374		1,374
Issuance of common stock under equity plans, shares		102
Other comprehensive income (loss)	(439)			(439)
Net loss	(64,357)				(64,357)
Ending balance at Jun. 30, 2021	558,551	$ 7	925,796	(393)	(366,859)
Ending balance (in shares) at Jun. 30, 2021		66,296
Beginning balance at Mar. 31, 2021	585,987	$ 7	919,258	(82)	(333,196)
Beginning balance (in shares) at Mar. 31, 2021		66,263
Share-based compensation expense	5,993		5,993
Issuance of common stock under equity plans	545		545
Issuance of common stock under equity plans, shares		33
Other comprehensive income (loss)	(311)			(311)
Net loss	(33,663)				(33,663)
Ending balance at Jun. 30, 2021	558,551	$ 7	925,796	(393)	(366,859)
Ending balance (in shares) at Jun. 30, 2021		66,296
Beginning balance at Dec. 31, 2021	506,609	$ 7	941,359	(1,789)	(432,968)
Beginning balance (in shares) at Dec. 31, 2021		66,572
Share-based compensation expense	13,158		13,158
Issuance of common stock under equity plans	2,972		2,972
Issuance of common stock under equity plans, shares		266
Other comprehensive income (loss)	(6,026)			(6,026)
Net loss	(67,222)				(67,222)
Ending balance at Jun. 30, 2022	449,491	$ 7	957,489	(7,815)	(500,190)
Ending balance (in shares) at Jun. 30, 2022		66,838
Beginning balance at Mar. 31, 2022	476,250	$ 7	948,312	(6,648)	(465,421)
Beginning balance (in shares) at Mar. 31, 2022		66,636
Share-based compensation expense	6,508		6,508
Issuance of common stock under equity plans	2,669		2,669
Issuance of common stock under equity plans, shares		202
Other comprehensive income (loss)	(1,167)			(1,167)
Net loss	(34,769)				(34,769)
Ending balance at Jun. 30, 2022	$ 449,491	$ 7	$ 957,489	$ (7,815)	$ (500,190)
Ending balance (in shares) at Jun. 30, 2022		66,838