Notes Payable - 2024 Unsecured SPA Notes Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) $ / shares shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) day $ / shares shares	Sep. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jan. 28, 2025 $ / shares	Dec. 31, 2024 USD ($)	Dec. 21, 2024 $ / shares	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
2024 Unsecured SPA Warrants
Debt Instrument [Line Items]
Debt instrument, term (in years)			5 years
2024 Unsecured SPA Notes
Debt Instrument [Line Items]
Percent of purchaser's conversion shares	33.00%		33.00%
Notes Payable
Debt Instrument [Line Items]
Notes and loans payable	$ 78,902	$ 55,500	$ 78,902	$ 55,500	$ 28,033		$ 49,488		$ 77,394	$ 91,150
Gain (loss) on extinguishment of debt		(2,699)		(2,699)
Gain (loss) on fair value adjustment of debts	$ 18,074	$ 14,881	$ 31,131	$ 35,690
2024 Unsecured SPA Notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold consecutive trading days (in days) | day			1
Debt instrument, term (in years)			5 years
2024 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate	10.00%		10.00%				10.00%
Conversion price (in dollars per share) | $ / shares	$ 1.16		$ 1.16			$ 1.16		$ 1.16
Debt instrument, floor price (in dollars per share) | $ / shares	$ 1.05		$ 1.05
Debt instrument, convertible, threshold consecutive trading days (in days) | day			5
Debt instrument, term (in years)			1 year
Notes and loans payable	$ 9,826		$ 9,826		$ 10,009		$ 7,032
Proceeds from debt, net of issuance costs	14,000		34,000
Gain (loss) on fair value adjustment of debts	6,233		8,505
2024 Unsecured SPA Notes | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Debt conversion, converted amount	$ 23,200		$ 34,900
Shares issued from conversion (in shares) | shares	20,894,171		31,690,932
Gain (loss) on extinguishment of debt	$ (36,300)		$ (45,600)