Fair Value of Financial Instruments - Schedule of Changes in Liability for Unobservable Inputs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income Flag	Change in fair value of notes payable, warrant liabilities, and derivative call options
Fair value, measurement with unobservable inputs reconciliation, recurring basis, liability, period increase (decrease)	$ (11,349)
Debt issuance costs, net	429	$ 25
Nonrelated Party
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Debt issuance costs, net	429
Related Party
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Debt issuance costs, net	76
Warrant Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	28,864
Additions	16,341
Change in fair value measurements	(21,581)
Ending balance	23,624
Warrant Liabilities | Class A Common Stock
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Conversions of notes to Class A Common Stock	0
Derivative Call Option
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	29,709
Additions	19,730
Change in fair value measurements	(32,382)
Conversions of notes to Class A Common Stock	0
Ending balance	17,057
Notes Payable
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	46,628
Additions	12,525
Change in fair value measurements	(22,445)
Ending balance	21,136
Notes Payable | Class A Common Stock
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Conversions of notes to Class A Common Stock	$ (15,572)