Consolidated Statements of Changes in Mezzanine Equity and Stockholders’ Equity - USD ($)	Total	Series A Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2022			109,696,178
Beginning balance at Dec. 31, 2022	$ 63,953,000		$ 110,000	$ 757,951,000	$ (693,307,000)	$ (801,000)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock as dividend on convertible preferred stock (in shares)			91,920
Issuance of common stock pursuant to employee stock purchase program	4,215,000		$ 1,000	4,214,000
Stock issued during period, value, stock options exercised (in shares)			579,000
Issuance of common stock pursuant to exercise of stock options	1,575,000		$ 1,000	1,574,000
Issuance of common stock pursuant to settlement of restricted stock units (in shares)			5,330,317
Issuance of common stock pursuant to settlement of restricted stock units	0		$ 5,000	(5,000)
Common stock surrendered for employees' tax liability upon settlement or restricted stock units (in shares)			(1,637,120)
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation	(15,961,000)		$ (2,000)	(15,959,000)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	58,555,000			58,555,000
Other Comprehensive Income (Loss), Net of Tax	544,000					544,000
Net Income (Loss)	(107,128,000)				(107,128,000)
Ending balance (in shares) at Sep. 30, 2023			115,210,998
Ending balance at Sep. 30, 2023	$ 5,753,000		$ 115,000	806,330,000	(800,435,000)	(257,000)
Beginning balance (in shares) at Dec. 31, 2022		40,000
Beginning balance at Dec. 31, 2022		$ 39,914,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Stock Issued During Period, Value, New Issues		33,000
Ending balance (in shares) at Sep. 30, 2023	40,000
Ending balance at Sep. 30, 2023		$ 39,947,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of common stock pursuant to employee stock purchase program (in shares)			1,150,703
Beginning balance (in shares) at Jun. 30, 2023			113,934,673
Beginning balance at Jun. 30, 2023	$ 9,501,000		$ 114,000	791,302,000	(781,463,000)	(452,000)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock as dividend on convertible preferred stock (in shares)			30,640
Stock issued during period, value, stock options exercised (in shares)			15,836
Issuance of common stock pursuant to exercise of stock options	123,000		$ 0	123,000
Issuance of common stock pursuant to settlement of restricted stock units (in shares)			1,761,678
Issuance of common stock pursuant to settlement of restricted stock units	0		$ 2,000	(2,000)
Common stock surrendered for employees' tax liability upon settlement or restricted stock units (in shares)			(531,829)
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation	(4,863,000)		$ (1,000)	(4,862,000)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	19,769,000			19,769,000
Other Comprehensive Income (Loss), Net of Tax	195,000					195,000
Net Income (Loss)	(18,972,000)				(18,972,000)
Ending balance (in shares) at Sep. 30, 2023			115,210,998
Ending balance at Sep. 30, 2023	$ 5,753,000		$ 115,000	806,330,000	(800,435,000)	(257,000)
Beginning balance (in shares) at Jun. 30, 2023		40,000
Beginning balance at Jun. 30, 2023		$ 39,936,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Stock Issued During Period, Value, New Issues		11,000
Ending balance (in shares) at Sep. 30, 2023	40,000
Ending balance at Sep. 30, 2023		$ 39,947,000
Beginning balance (in shares) at Dec. 31, 2023	117,372,171		117,372,171
Beginning balance at Dec. 31, 2023	$ 2,748,000		$ 117,000	826,146,000	(823,333,000)	(182,000)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock as dividend on convertible preferred stock (in shares)	30,640		91,920
Issuance of common stock pursuant to employee stock purchase program	$ 1,975,000		$ 0	1,975,000
Stock issued during period, value, stock options exercised (in shares)	310,968		310,968
Issuance of common stock pursuant to exercise of stock options	$ 2,783,000		$ 0	2,783,000
Issuance of common stock pursuant to settlement of restricted stock units (in shares)			5,990,918
Issuance of common stock pursuant to settlement of restricted stock units	0		$ 7,000	(7,000)
Common stock surrendered for employees' tax liability upon settlement or restricted stock units (in shares)			(206,898)
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation	(1,574,000)		$ 0	(1,574,000)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	57,269,000			57,269,000
Other Comprehensive Income (Loss), Net of Tax	42,000					42,000
Net Income (Loss)	$ (128,436,000)				(128,436,000)
Ending balance (in shares) at Sep. 30, 2024	123,945,380		123,945,380
Ending balance at Sep. 30, 2024	$ (65,193,000)		$ 124,000	886,592,000	(951,769,000)	(140,000)
Beginning balance (in shares) at Dec. 31, 2023	40,000	40,000
Beginning balance at Dec. 31, 2023	$ 39,959,000	$ 39,959,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Stock Issued During Period, Value, New Issues		33,000
Ending balance (in shares) at Sep. 30, 2024	40,000
Ending balance at Sep. 30, 2024	$ 39,992,000	$ 39,992,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of common stock pursuant to employee stock purchase program (in shares)			386,301
Beginning balance (in shares) at Jun. 30, 2024			121,743,620
Beginning balance at Jun. 30, 2024	(52,746,000)		$ 122,000	865,263,000	(917,987,000)	(144,000)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock as dividend on convertible preferred stock (in shares)			30,640
Issuance of common stock pursuant to employee stock purchase program	0		$ 0	0
Stock issued during period, value, stock options exercised (in shares)			281,420
Issuance of common stock pursuant to exercise of stock options	2,598,000		$ 0	2,598,000
Issuance of common stock pursuant to settlement of restricted stock units (in shares)			1,960,792
Issuance of common stock pursuant to settlement of restricted stock units	0		$ 2,000	(2,000)
Common stock surrendered for employees' tax liability upon settlement or restricted stock units (in shares)			(71,092)
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation	(633,000)			(633,000)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	19,366,000			19,366,000
Other Comprehensive Income (Loss), Net of Tax	4,000					4,000
Net Income (Loss)	$ (33,782,000)				(33,782,000)
Ending balance (in shares) at Sep. 30, 2024	123,945,380		123,945,380
Ending balance at Sep. 30, 2024	$ (65,193,000)		$ 124,000	$ 886,592,000	$ (951,769,000)	$ (140,000)
Beginning balance (in shares) at Jun. 30, 2024		40,000
Beginning balance at Jun. 30, 2024		$ 39,981,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Stock Issued During Period, Value, New Issues		11,000
Ending balance (in shares) at Sep. 30, 2024	40,000
Ending balance at Sep. 30, 2024	$ 39,992,000	$ 39,992,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of common stock pursuant to employee stock purchase program (in shares)			0