Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Series A Non-Voting Convertible Preferred Stock	Series A Non-Voting Convertible Preferred Stock Preferred Stock	Series B Non-Voting Convertible Preferred Stock	Series B Non-Voting Convertible Preferred Stock Preferred Stock
Beginning balance, preferred stock (in shares) at Dec. 31, 2024							346,000		17,000
Beginning balance at Dec. 31, 2024	$ 517,804	$ 13	$ 1,334,223	$ 180	$ (972,432)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Dec. 31, 2024		60,257,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		19,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	218		218
Stock-based compensation expense	8,859		8,859
Foreign currency translation adjustment	14			14
Unrealized (loss) gain on marketable securities	488			488
Net loss	(44,773)				(44,773)
Ending balance, preferred stock (in shares) at Mar. 31, 2025							346,000		17,000
Ending balance at Mar. 31, 2025	482,610	$ 13	1,343,300	682	(1,017,205)		$ 146,425		$ 9,395
Ending balance, common stock (in shares) at Mar. 31, 2025		60,276,000
Beginning balance, preferred stock (in shares) at Dec. 31, 2024							346,000		17,000
Beginning balance at Dec. 31, 2024	517,804	$ 13	1,334,223	180	(972,432)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Dec. 31, 2024		60,257,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation adjustment	(22)
Unrealized (loss) gain on marketable securities	633
Net loss	(92,673)					$ (17,138)		$ (825)
Ending balance, preferred stock (in shares) at Sep. 30, 2025							346,000		17,000
Ending balance at Sep. 30, 2025	455,100	$ 13	1,363,581	791	(1,065,105)		$ 146,425		$ 9,395
Ending balance, common stock (in shares) at Sep. 30, 2025		60,472,000
Beginning balance, preferred stock (in shares) at Mar. 31, 2025							346,000		17,000
Beginning balance at Mar. 31, 2025	482,610	$ 13	1,343,300	682	(1,017,205)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Mar. 31, 2025		60,276,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		97,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	730		730
Stock-based compensation expense	9,378		9,378
Foreign currency translation adjustment	(36)			(36)
Unrealized (loss) gain on marketable securities	(192)			(192)
Net loss	(36,717)				(36,717)
Ending balance, preferred stock (in shares) at Jun. 30, 2025							346,000		17,000
Ending balance at Jun. 30, 2025	455,773	$ 13	1,353,408	454	(1,053,922)		$ 146,425		$ 9,395
Ending balance, common stock (in shares) at Jun. 30, 2025		60,373,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		65,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	607		607
Vesting of restricted stock units (in shares)		34,000
Stock-based compensation expense	9,566		9,566
Foreign currency translation adjustment	0
Unrealized (loss) gain on marketable securities	337			337
Net loss	(11,183)				(11,183)	$ (2,066)		$ (100)
Ending balance, preferred stock (in shares) at Sep. 30, 2025							346,000		17,000
Ending balance at Sep. 30, 2025	455,100	$ 13	1,363,581	791	(1,065,105)		$ 146,425		$ 9,395
Ending balance, common stock (in shares) at Sep. 30, 2025		60,472,000
Beginning balance, preferred stock (in shares) at Dec. 31, 2025						346,045	346,000	16,667	17,000
Beginning balance at Dec. 31, 2025	$ 715,236	$ 15	1,686,167	869	(1,127,635)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Dec. 31, 2025	78,189,811	78,190,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with at-the-market offering programs, net of financing costs (in shares)		296,000
Issuance of common stock in connection with at-the-market offering programs, net of financing costs	$ 9,747		9,747
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		354,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	3,663		3,663
Stock-based compensation expense	12,806		12,806
Unrealized (loss) gain on marketable securities	(1,636)			(1,636)
Net loss	(69,005)				(69,005)
Ending balance, preferred stock (in shares) at Mar. 31, 2026							346,000		17,000
Ending balance at Mar. 31, 2026	670,811	$ 15	1,712,383	(767)	(1,196,640)		$ 146,425		$ 9,395
Ending balance, common stock (in shares) at Mar. 31, 2026		78,840,000
Beginning balance, preferred stock (in shares) at Dec. 31, 2025						346,045	346,000	16,667	17,000
Beginning balance at Dec. 31, 2025	$ 715,236	$ 15	1,686,167	869	(1,127,635)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Dec. 31, 2025	78,189,811	78,190,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation adjustment	$ 0
Unrealized (loss) gain on marketable securities	(6,251)
Net loss	(201,326)					$ (28,285)		$ (868)
Ending balance, preferred stock (in shares) at Sep. 30, 2026						346,045	346,000	0	0
Ending balance at Sep. 30, 2026	$ 1,051,535	$ 16	2,239,437	(5,382)	(1,328,961)		$ 146,425		$ 0
Ending balance, common stock (in shares) at Sep. 30, 2026	89,953,997	89,954,000
Beginning balance, preferred stock (in shares) at Mar. 31, 2026							346,000		17,000
Beginning balance at Mar. 31, 2026	$ 670,811	$ 15	1,712,383	(767)	(1,196,640)		$ 146,425		$ 9,395
Beginning balance, common stock (in shares) at Mar. 31, 2026		78,840,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Series B Non-Voting Convertible Preferred Stock to common stock (in shares)		667,000							(17,000)
Conversion of Series B Non-Voting Convertible Preferred Stock to common stock	0		9,395						$ (9,395)
Issuance of common stock in connection with at-the-market offering programs, net of financing costs (in shares)		7,475,000
Issuance of common stock in connection with at-the-market offering programs, net of financing costs	434,898	$ 1	434,897
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		1,083,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	19,749		19,749
Stock-based compensation expense	13,512		13,512
Unrealized (loss) gain on marketable securities	(1,629)			(1,629)
Net loss	(36,200)				(36,200)
Ending balance, preferred stock (in shares) at Jun. 30, 2026							346,000		0
Ending balance at Jun. 30, 2026	1,101,141	$ 16	2,189,936	(2,396)	(1,232,840)		$ 146,425		$ 0
Ending balance, common stock (in shares) at Jun. 30, 2026		88,064,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with at-the-market offering programs, net of financing costs (in shares)		327,000
Issuance of common stock in connection with at-the-market offering programs, net of financing costs	29,520		29,520
Issuance of common stock in connection with exercise of warrants (in shares)		1,161,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan (in shares)		368,000
Issuance of common stock in connection with exercise of stock options and employee stock purchase plan	5,814		5,814
Vesting of restricted stock units (in shares)		34,000
Stock-based compensation expense	14,167		14,167
Foreign currency translation adjustment	0
Unrealized (loss) gain on marketable securities	(2,986)			(2,986)
Net loss	(96,121)				(96,121)	$ (13,012)		$ 0
Ending balance, preferred stock (in shares) at Sep. 30, 2026						346,045	346,000	0	0
Ending balance at Sep. 30, 2026	$ 1,051,535	$ 16	$ 2,239,437	$ (5,382)	$ (1,328,961)		$ 146,425		$ 0
Ending balance, common stock (in shares) at Sep. 30, 2026	89,953,997	89,954,000