Net Loss Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Numerator
Allocation of losses	$ (36,200)	$ (69,005)	$ (36,717)	$ (44,773)	$ (105,205)	$ (81,490)
Denominator
Net loss per share, diluted (in dollars per share)					$ (1.09)
Series A Preferred Stock
Numerator
Allocation of losses	$ (5,052)		$ (6,791)		$ (15,147)	$ (15,078)
Denominator
Weighted-average shares outstanding (in shares)	346,045		346,045		346,045	346,045
Net loss per share, basic (in dollars per share)	$ (14.60)		$ (19.62)		$ (43.77)	$ (43.57)
Net loss per share, diluted (in dollars per share)	$ (14.60)		$ (19.62)		$ (43.77)	$ (43.57)
Series B Preferred Stock
Numerator
Allocation of losses	$ (225)		$ (327)		$ (701)	$ (726)
Denominator
Weighted-average shares outstanding (in shares)	15,385		16,667		16,022	16,667
Net loss per share, basic (in dollars per share)	$ (14.60)		$ (19.62)		$ (43.77)	$ (43.57)
Net loss per share, diluted (in dollars per share)	$ (14.60)		$ (19.62)		$ (43.77)	$ (43.57)
Common Stock
Numerator
Allocation of losses	$ (30,923)		$ (29,599)		$ (89,357)	$ (65,686)
Denominator
Weighted-average shares outstanding (in shares)	84,729,435		60,333,838		81,656,119	60,300,073
Net loss per share, basic (in dollars per share)	$ (0.36)		$ (0.49)		$ (1.09)	$ (1.09)
Net loss per share, diluted (in dollars per share)	$ (0.36)		$ (0.49)		$ (1.09)	$ (1.09)