Net Loss Per Share - Reconciliation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Allocation of losses	$ (208,018)	$ (338,790)	$ (83,815)
Series A Preferred Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Allocation of losses	$ (47,624)	$ (239,158)	$ 0
Weighted-average shares outstanding (in shares)	374,387	434,612	0
Weighted average pre-funded warrants outstanding (in shares)	0	0	0
Number of shares used in per share computation, basic (in shares)	374,387	434,612	0
Number of shares used in per share computation, diluted (in shares)	374,387	434,612	0
Net loss per share, basic (in dollars per share)	$ (127.21)	$ (550.28)	$ 0
Net loss per share, diluted (in dollars per share)	$ (127.21)	$ (550.28)	$ 0
Series B Preferred Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Allocation of losses	$ (10,839)	$ (4,749)	$ 0
Weighted-average shares outstanding (in shares)	85,208	8,630	0
Weighted average pre-funded warrants outstanding (in shares)	0	0	0
Number of shares used in per share computation, basic (in shares)	85,208	8,630	0
Number of shares used in per share computation, diluted (in shares)	85,208	8,630	0
Net loss per share, basic (in dollars per share)	$ (127.21)	$ (550.29)	$ 0
Net loss per share, diluted (in dollars per share)	$ (127.21)	$ (550.29)	$ 0
Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Allocation of losses	$ (149,555)	$ (94,883)	$ (83,815)
Weighted-average shares outstanding (in shares)	46,940,206	6,201,954	2,307,668
Weighted average pre-funded warrants outstanding (in shares)	87,432	695,111	1,063,563
Number of shares used in per share computation, basic (in shares)	47,027,638	6,897,065	3,371,231
Number of shares used in per share computation, diluted (in shares)	47,027,638	6,897,065	3,371,231
Net loss per share, basic (in dollars per share)	$ (3.18)	$ (13.76)	$ (24.86)
Net loss per share, diluted (in dollars per share)	$ (3.18)	$ (13.76)	$ (24.86)