Unaudited Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common stock	Additional paid-in capital	Additional paid-in capital Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income (loss)	Accumulated deficit	Accumulated deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2020			95,456,862
Beginning balance at Dec. 31, 2020	$ 94,071		$ 95	$ 395,347		$ 9,371	$ (310,742)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Common stock in connection with follow-on offering, net of issuance costs of $17,466 (in shares)			7,961,538
Issuance of Common stock in connection with follow-on offering, net of issuance costs of $17,466	500,034		$ 8	500,026
Stock-based compensation expense	21,379			21,379
Common stock issued under employee stock plans, net (in shares)			2,728,995
Common stock issued under employee stock plans	4,673		$ 3	4,670
Taxes paid related to net share settlement of equity awards	(731)			(731)
Unrealized loss on derivative instruments	(5,185)					(5,185)
Unrealized income on available for sale securities	5					5
Net loss	(35,656)						(35,656)
Ending balance (in shares) at Mar. 31, 2021			106,147,395
Ending balance at Mar. 31, 2021	578,590		$ 106	920,691		4,191	(346,398)
Beginning balance (in shares) at Dec. 31, 2020			95,456,862
Beginning balance at Dec. 31, 2020	94,071		$ 95	395,347		9,371	(310,742)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized loss on derivative instruments	(6,277)
Unrealized income on available for sale securities	(1)
Net loss	(68,604)
Ending balance (in shares) at Jun. 30, 2021			106,914,031
Ending balance at Jun. 30, 2021	570,386		$ 107	946,532		3,093	(379,346)
Beginning balance (in shares) at Dec. 31, 2020			95,456,862
Beginning balance at Dec. 31, 2020	94,071		$ 95	395,347		9,371	(310,742)
Ending balance (in shares) at Dec. 31, 2021			107,509,096
Ending balance at Dec. 31, 2021	$ 596,593	$ (22,147)	$ 108	1,018,005	$ (30,794)	6,083	(427,603)	$ 8,647
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
Beginning balance (in shares) at Mar. 31, 2021			106,147,395
Beginning balance at Mar. 31, 2021	$ 578,590		$ 106	920,691		4,191	(346,398)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	25,868			25,868
Common stock issued under employee stock plans, net (in shares)			766,636
Common stock issued under employee stock plans	38		$ 1	37
Taxes paid related to net share settlement of equity awards	(64)			(64)
Unrealized loss on derivative instruments	(1,092)					(1,092)
Unrealized income on available for sale securities	(6)					(6)
Net loss	(32,948)						(32,948)
Ending balance (in shares) at Jun. 30, 2021			106,914,031
Ending balance at Jun. 30, 2021	570,386		$ 107	946,532		3,093	(379,346)
Beginning balance (in shares) at Dec. 31, 2021			107,509,096
Beginning balance at Dec. 31, 2021	596,593	(22,147)	$ 108	1,018,005	(30,794)	6,083	(427,603)	8,647
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	35,998			35,998
Common stock issued under employee stock plans, net (in shares)			2,057,101
Common stock issued under employee stock plans	6,111		$ 2	6,109
Taxes paid related to net share settlement of equity awards	(28,825)			(28,825)
Unrealized loss on derivative instruments	(3,179)					(3,179)
Unrealized income on available for sale securities	(10)					(10)
Net loss	(48,763)						(48,763)
Ending balance (in shares) at Mar. 31, 2022			109,566,197
Ending balance at Mar. 31, 2022	535,778		$ 110	1,000,493		2,894	(467,719)
Beginning balance (in shares) at Dec. 31, 2021			107,509,096
Beginning balance at Dec. 31, 2021	596,593	$ (22,147)	$ 108	1,018,005	$ (30,794)	6,083	(427,603)	$ 8,647
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized loss on derivative instruments	(13,983)
Unrealized income on available for sale securities	(19)
Net loss	(85,053)
Ending balance (in shares) at Jun. 30, 2022			109,886,197
Ending balance at Jun. 30, 2022	526,432		$ 110	1,038,250		(7,919)	(504,009)
Beginning balance (in shares) at Mar. 31, 2022			109,566,197
Beginning balance at Mar. 31, 2022	535,778		$ 110	1,000,493		2,894	(467,719)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	37,758			37,758
Common stock issued under employee stock plans, net (in shares)			320,000
Common stock issued under employee stock plans	5		$ 0	5
Taxes paid related to net share settlement of equity awards	(6)			(6)
Unrealized loss on derivative instruments	(10,804)					(10,804)
Unrealized income on available for sale securities	(9)					(9)
Net loss	(36,290)						(36,290)
Ending balance (in shares) at Jun. 30, 2022			109,886,197
Ending balance at Jun. 30, 2022	$ 526,432		$ 110	$ 1,038,250		$ (7,919)	$ (504,009)