Condensed Consolidated Statements of Changes in Stockholders' Deficit Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Other Comprehensive Loss	Accumulated Deficit
Balance at beginning (in shares) at Dec. 31, 2021	45,729
Balance at beginning at Dec. 31, 2021	$ 176,962	$ 5	$ 827,028	$ (318)	$ (649,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		624
Stock Issued During Period, Value, Stock Options Exercised	1,035		1,035
Stock Issued During Period, Value, Employee Stock Purchase Plan	1,502		1,502
Common stock issued for employee stock purchase plan (in shares)		49
Tax withholdings related to net share settlements of restricted stock units	(1,505)		(1,505)
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			7,785
Stock-based compensation	7,785
Net loss	(39,500)				(39,500)
Other comprehensive loss	(974)			(974)
Balance at end (in shares) at Mar. 31, 2022		46,402
Balance at end at Mar. 31, 2022	$ 145,305	$ 5	835,845	(1,292)	(689,253)
Balance at beginning (in shares) at Dec. 31, 2021	45,729
Balance at beginning at Dec. 31, 2021	$ 176,962	$ 5	827,028	(318)	(649,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(115,429)
Balance at end (in shares) at Sep. 30, 2022		46,635
Balance at end at Sep. 30, 2022	82,928	$ 5	849,406	(1,301)	(765,182)
Balance at beginning (in shares) at Mar. 31, 2022		46,402
Balance at beginning at Mar. 31, 2022	145,305	$ 5	835,845	(1,292)	(689,253)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		76
Stock Issued During Period, Value, Stock Options Exercised	264		264
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			6,493
Stock-based compensation	6,493
Net loss	(39,239)				(39,239)
Other comprehensive loss	(158)			(158)
Balance at end (in shares) at Jun. 30, 2022		46,478
Balance at end at Jun. 30, 2022	112,665	$ 5	842,602	(1,450)	(728,492)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		56
Stock Issued During Period, Value, Stock Options Exercised	117		117
Stock Issued During Period, Value, Employee Stock Purchase Plan	1,168		1,168
Common stock issued for employee stock purchase plan (in shares)		101
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			5,519
Stock-based compensation	5,519
Net loss	(36,690)				(36,690)
Other comprehensive loss	149			149
Balance at end (in shares) at Sep. 30, 2022		46,635
Balance at end at Sep. 30, 2022	$ 82,928	$ 5	849,406	(1,301)	(765,182)
Balance at beginning (in shares) at Dec. 31, 2022	46,719
Balance at beginning at Dec. 31, 2022	$ 45,814	$ 5	855,694	(589)	(809,296)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		437
Stock Issued During Period, Value, Stock Options Exercised	20		20
Stock Issued During Period, Value, Employee Stock Purchase Plan	1,354		1,354
Common stock issued for employee stock purchase plan (in shares)		172
Tax withholdings related to net share settlements of restricted stock units	(490)		(490)
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			7,626
Stock-based compensation	7,626
Net loss	(41,238)				(41,238)
Other comprehensive loss	534			534
Balance at end (in shares) at Mar. 31, 2023		47,328
Balance at end at Mar. 31, 2023	$ 13,620	$ 5	864,204	(55)	(850,534)
Balance at beginning (in shares) at Dec. 31, 2022	46,719
Balance at beginning at Dec. 31, 2022	$ 45,814	$ 5	855,694	(589)	(809,296)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(122,317)
Balance at end (in shares) at Sep. 30, 2023		48,108
Balance at end at Sep. 30, 2023	(50,566)	$ 5	881,038	4	(931,613)
Balance at beginning (in shares) at Mar. 31, 2023		47,328
Balance at beginning at Mar. 31, 2023	13,620	$ 5	864,204	(55)	(850,534)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		198
Stock Issued During Period, Value, Stock Options Exercised	92		92
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			8,436
Stock-based compensation	8,436
Net loss	(43,668)				(43,668)
Other comprehensive loss	59			59
Balance at end (in shares) at Jun. 30, 2023		47,526
Balance at end at Jun. 30, 2023	(21,461)	$ 5	872,732	4	(894,202)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for stock options and restricted stock units (in shares)		187
Stock Issued During Period, Value, Employee Stock Purchase Plan	866		866
Common stock issued for employee stock purchase plan (in shares)		395
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition			7,440
Stock-based compensation	7,440
Net loss	(37,411)				(37,411)
Balance at end (in shares) at Sep. 30, 2023		48,108
Balance at end at Sep. 30, 2023	$ (50,566)	$ 5	$ 881,038	$ 4	$ (931,613)