Derivatives - Narrative (Details) - USD ($)											3 Months Ended			6 Months Ended
	Feb. 11, 2025	Feb. 10, 2025	Feb. 05, 2025	Mar. 05, 2024	Mar. 04, 2024	Feb. 27, 2024	Feb. 08, 2024	Jun. 13, 2023	Jan. 19, 2023	Feb. 11, 2021	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Feb. 06, 2025	Dec. 31, 2024	Feb. 28, 2024	May 29, 2022	Dec. 07, 2021
Class of Warrant or Right [Line Items]
Issuance of shares for convertible notes converted to common stock														$ 113,953,000	$ 90,707,000
Common stock, issued (in shares)											369,171,608			369,171,608			251,554,378
2026 Convertible notes
Class of Warrant or Right [Line Items]
Debt, face amount																			$ 1,000	$ 200,000,000
2029 Convertible Notes
Class of Warrant or Right [Line Items]
Issuance of shares for convertible notes converted to common stock												$ 57,700,000
Convertible debt conversion (in shares)												16,700,000
2023 RDO warrants
Class of Warrant or Right [Line Items]
Derivative loss															(10,100,000)
Number of securities called by warrant (in shares)						8,886,255
Proceeds from warrant exercises						$ 20,600,000
2023 RDO warrants | Registered Direct Offering
Class of Warrant or Right [Line Items]
Common stock, issued (in shares)								11,848,341
Exercise price (in usd per shares)								$ 2.32
Class of warrant or right, exercisable (in shares)								8,886,255
Post issuance period								6 months
Warrants and rights outstanding, term (in years)								5 years
Number of securities called by warrant (in shares)								0.75
2024 RDO Warrants
Class of Warrant or Right [Line Items]
Derivative loss														$ (14,300,000)
Exercise price (in usd per shares)																	$ 3.78	$ 3.78
Post issuance period							6 months
Warrants and rights outstanding, term (in years)																		5 years
Number of securities called by warrant (in shares)			5,800,000															5,800,000
Proceeds from warrant exercises			$ 21,900,000
2025 RDO warrants
Class of Warrant or Right [Line Items]
Derivative loss														$ (2,800,000)
Exercise price (in usd per shares)			$ 9.00								$ 9.00			$ 9.00		$ 9.00
Post issuance period			6 months
Warrants and rights outstanding, term (in years)			5 years
Number of securities called by warrant (in shares)			3,770,000
Fair value of warrant liability											$ 21,400,000			$ 21,400,000
Warrants issued (in shares)											3,770,000			3,770,000
Warrants outstanding (in shares)											3,770,000			3,770,000
2023 PIPE warrants
Class of Warrant or Right [Line Items]
Derivative loss															(32,200,000)
Number of securities called by warrant (in shares)					13,888,889
Proceeds from warrant exercises					$ 33,200,000
2023 PIPE warrants | Private Placement
Class of Warrant or Right [Line Items]
Common stock, issued (in shares)									13,888,889
Exercise price (in usd per shares)									$ 2.39
Post issuance period									6 months
Warrants and rights outstanding, term (in years)									5 years
Class of warrant or right, number of securities called by warrants or rights (in shares)									13,888,889
Beneficial ownership percentage									4.99%
2024 PIPE Warrants
Class of Warrant or Right [Line Items]
Derivative loss	$ 100,000	$ 200,000
Exercise price (in usd per shares)				$ 4.75													$ 4.75
Post issuance period				6 months
Warrants and rights outstanding, term (in years)				5 years
Number of securities called by warrant (in shares)	9,000,000	9,000,000		9,000,000
Proceeds from warrant exercises	$ 21,400,000	$ 21,400,000
Warrants outstanding (in shares)	4,500,000	4,500,000
IPO public warrants
Class of Warrant or Right [Line Items]
Exercise price (in usd per shares)										$ 11.50
Number of securities called by warrant (in shares)										1
Warrants issued (in shares)											12,251,606			12,251,606			12,168,378
Warrants outstanding (in shares)											12,251,606			12,251,606			12,168,378
Class of warrant or right, redemption price (in usd per share)										$ 0.01
Minimum period of prior written notice of redemption of warrants										30 days
Warrants redemption covenant threshold trading period										20 days
Warrants redemption covenant threshold consecutive trading period										30 days				3 days
IPO public warrants | Minimum
Class of Warrant or Right [Line Items]
Minimum strike price (in usd per share)										$ 18.00
IPO Private Warrants
Class of Warrant or Right [Line Items]
Derivative loss											$ 151,000		$ (35,000)	$ (69,000)	$ (35,000)
Exercise price (in usd per shares)											$ 11.50			$ 11.50			$ 11.50
Fair value of warrant liability											$ 200,000			$ 200,000			$ 300,000
2026 Notes Conversion Option
Class of Warrant or Right [Line Items]
Debt, face amount											17,700,000			17,700,000
Fair value of derivative liability											2,468,000			2,468,000			322,000
Derivative loss														(2,500,000)
2029 Notes Conversion Option
Class of Warrant or Right [Line Items]
Debt, face amount											124,600,000			124,600,000
Fair value of derivative liability											169,135,000			169,135,000			$ 115,831,000
Derivative loss														(149,900,000)
Debt derivative liability														59,900,000
Loss on extinguishment											$ 2,600,000			2,600,000
2029 Notes Conversion Option | 2029 Convertible Notes
Class of Warrant or Right [Line Items]
Issuance of shares for convertible notes converted to common stock														$ 57,700,000
Convertible debt conversion (in shares)														16,700,000