Condensed Consolidated Statements of Stockholders' Equity (Deficit) - 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 deficit	Accumulated deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2020			73,874,904
Beginning balance at Dec. 31, 2020	$ 320,684		$ 8	$ 897,607		$ (577,530)		$ 599
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (in shares)			238,962
Exercise of stock option (in shares)			5,721
Exercise of stock options (in dollars)	15			15
Stock-based compensation	8,708			8,708
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			95,004
Issuance of common stock pursuant to Employee Stock Purchase Plan	759			759
Issuance of common stock for restricted stock units vested (in shares)			278,559
Net loss	(57,641)					(57,641)
Other comprehensive loss	(441)							(441)
Ending balance (in shares) at Mar. 31, 2021			74,493,150
Ending balance at Mar. 31, 2021	272,084		$ 8	907,089		(635,171)		158
Beginning balance (in shares) at Dec. 31, 2020			73,874,904
Beginning balance at Dec. 31, 2020	320,684		$ 8	897,607		(577,530)		599
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(177,720)
Other comprehensive loss	(462)
Ending balance (in shares) at Sep. 30, 2021			75,300,074
Ending balance at Sep. 30, 2021	169,809		$ 8	924,914		(755,250)		137
Beginning balance (in shares) at Dec. 31, 2020			73,874,904
Beginning balance at Dec. 31, 2020	$ 320,684		$ 8	897,607		(577,530)		599
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
Ending balance (in shares) at Dec. 31, 2021			75,752,664
Ending balance at Dec. 31, 2021	$ 121,463	$ (44,838)	$ 8	932,944	$ (53,527)	(811,534)	$ 8,689	45
Beginning balance (in shares) at Mar. 31, 2021			74,493,150
Beginning balance at Mar. 31, 2021	272,084		$ 8	907,089		(635,171)		158
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (in shares)			231,710
Exercise of stock option (in shares)			103,922
Exercise of stock options (in dollars)	271			271
Stock-based compensation	8,054			8,054
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			6,170
Net loss	(59,832)					(59,832)
Other comprehensive loss	116							116
Ending balance (in shares) at Jun. 30, 2021			74,834,952
Ending balance at Jun. 30, 2021	220,693		$ 8	915,414		(695,003)		274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (in shares)			228,084
Exercise of stock option (in shares)			171,252
Exercise of stock options (in dollars)	1,357			1,357
Stock-based compensation	7,587			7,587
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			65,786
Issuance of common stock pursuant to Employee Stock Purchase Plan	556			556
Net loss	(60,247)					(60,247)
Other comprehensive loss	(137)							(137)
Ending balance (in shares) at Sep. 30, 2021			75,300,074
Ending balance at Sep. 30, 2021	169,809		$ 8	924,914		(755,250)		137
Beginning balance (in shares) at Dec. 31, 2021			75,752,664
Beginning balance at Dec. 31, 2021	121,463	(44,838)	$ 8	932,944	(53,527)	(811,534)	8,689	45
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (in shares)			165,675
Exercise of stock option (in shares)			39,525
Exercise of stock options (in dollars)	126			126
Stock-based compensation	10,983			10,983
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			77,496
Issuance of common stock pursuant to Employee Stock Purchase Plan	595			595
Issuance of common stock for restricted stock units vested (in shares)			518,577
Net loss	(57,785)					(57,785)
Other comprehensive loss	(385)							(385)
Ending balance (in shares) at Mar. 31, 2022			76,553,937
Ending balance at Mar. 31, 2022	30,159		$ 8	891,121		(860,630)		(340)
Beginning balance (in shares) at Dec. 31, 2021			75,752,664
Beginning balance at Dec. 31, 2021	$ 121,463	$ (44,838)	$ 8	932,944	$ (53,527)	(811,534)	$ 8,689	45
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock option (in shares)	269,103
Net loss	$ (173,614)
Other comprehensive loss	(630)
Ending balance (in shares) at Sep. 30, 2022			93,914,200
Ending balance at Sep. 30, 2022	56,351		$ 10	1,033,385		(976,459)		(585)
Beginning balance (in shares) at Mar. 31, 2022			76,553,937
Beginning balance at Mar. 31, 2022	30,159		$ 8	891,121		(860,630)		(340)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (in shares)			165,675
Exercise of stock option (in shares)			8,005
Exercise of stock options (in dollars)	21			21
Stock-based compensation	9,999			9,999
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			8,607
Net loss	(56,466)					(56,466)
Other comprehensive loss	(174)							(174)
Ending balance (in shares) at Jun. 30, 2022			76,736,224
Ending balance at Jun. 30, 2022	(16,461)		$ 8	901,141		(917,096)		(514)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with a private offering, net of offering costs (in shares)			16,649,365
Issuance of common stock in connection with a private offering, net of offering costs of $184	$ 119,928		$ 2	119,926
Vesting of restricted stock (in shares)	0		165,676
Exercise of stock option (in shares)			219,573
Exercise of stock options (in dollars)	$ 1,576			1,576
Stock-based compensation	10,122			10,122
Issuance of common stock pursuant to Employee Stock Purchase Plan (in shares)			80,362
Issuance of common stock pursuant to Employee Stock Purchase Plan	620			620
Issuance of common stock for restricted stock units vested (in shares)			63,000
Net loss	(59,363)					(59,363)
Other comprehensive loss	(71)							(71)
Ending balance (in shares) at Sep. 30, 2022			93,914,200
Ending balance at Sep. 30, 2022	$ 56,351		$ 10	$ 1,033,385		$ (976,459)		$ (585)