Notes Payable - Secured SPA Notes Narrative (Details) - USD ($)		6 Months Ended	12 Months Ended
	Aug. 02, 2024	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 21, 2024	Sep. 05, 2024	May 09, 2023	May 08, 2023	Mar. 23, 2023	Feb. 03, 2023
Debt Instrument [Line Items]
Payments of notes payable issuance costs			$ 2,087,000	$ 2,503,000
Notes Payable
Debt Instrument [Line Items]
Gain (loss) extinguishments of debt			2,699,000	13,078,000
Gain (loss) on fair value adjustment of debts			$ 34,218,000	(23,028,000)
Secured SPA Notes
Debt Instrument [Line Items]
Conversion price (in dollars per share)							$ 8,568	$ 10,080
Debt instrument, floor price (in dollars per share)							$ 960.00	$ 2,016
Secured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Debt instrument, fixed conversion price percentage			90.00%
Conversion price (in dollars per share)		$ 29.33	$ 1.16
Debt instrument, term (in years)			6 years
Aggregate principal amount			$ 108,800,000						$ 25,000,000.0
Notes payable			5,500,000	74,200,000
Proceeds from debt, net of issuance costs			10,700,000	187,200,000
Payments of notes payable issuance costs			$ 200,000	$ 1,900,000
Shares issued from conversion (in shares)			41,727,089	419,646
Gain (loss) extinguishments of debt			$ 5,158,000	$ 13,078,000
Gain (loss) on fair value adjustment of debts			33,943,000	(23,165,000)
Debt conversion, converted amount				188,100,000
Secured SPA Notes | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Redemption price, percentage		105.00%
Gain (loss) extinguishments of debt			$ (126,100,000)	(193,500,000)
Secured SPA Notes | Notes Payable | Metaverse Horizon Limited and V W Investment Holding Limited
Debt Instrument [Line Items]
Percent of purchaser's conversion shares			33.00%
Secured SPA Notes | Notes Payable | Tranche C
Debt Instrument [Line Items]
Conversion price (in dollars per share)										$ 10,080
Aggregate principal amount										$ 135,000,000.0
Replacement Note | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount										$ 31,000,000.0
Streeterville SPA | Notes Payable | Streeterville Capital, LLC | Class A Common Stock
Debt Instrument [Line Items]
Conversion price (in dollars per share)										$ 8,568
Tranche C Notes | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount									$ 40,000,000.0
Original issue discount percent									14.00%
Tranche B Notes | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount									$ 5,000,000.0
Original issue discount percent									16.00%
SPA Notes | Notes Payable
Debt Instrument [Line Items]
Conversion price (in dollars per share)	$ 29.33
SPA Notes | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Redemption price, percentage	90.00%
Junior Secured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate						10.00%
Conversion price (in dollars per share)					$ 1.16	$ 5.24
Debt instrument, term (in years)			1 year
Debt instrument, floor price (in dollars per share)						$ 1.05
Proceeds from debt, net of issuance costs			$ 22,500,000
Payments of notes payable issuance costs			1,300,000
Gain (loss) extinguishments of debt			0
Gain (loss) on fair value adjustment of debts			$ (9,665,000)
Junior Secured SPA Notes | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Shares issued from conversion (in shares)			1,046,651
Gain (loss) extinguishments of debt			$ 1,400,000
Debt conversion, converted amount			$ 1,100,000
2024 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate			10.00%
Conversion price (in dollars per share)			$ 1.16		$ 1.16
Debt instrument, term (in years)			1 year
Aggregate principal amount			$ 7,500,000
Debt instrument, floor price (in dollars per share)			$ 1.05
Proceeds from debt, net of issuance costs			$ 2,500,000
Payments of notes payable issuance costs			0
Gain (loss) extinguishments of debt			0
Gain (loss) on fair value adjustment of debts			$ 0
2023 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Conversion price (in dollars per share)			$ 1.16
Debt instrument, term (in years)			6 years
Aggregate principal amount			$ 22,100,000
Notes payable			6,700,000	11,900,000
Proceeds from debt, net of issuance costs			$ 0	23,300,000
Payments of notes payable issuance costs				$ 200,000
Shares issued from conversion (in shares)			19,368,059	85,830
Gain (loss) extinguishments of debt			$ (2,394,000)	$ 0
Gain (loss) on fair value adjustment of debts			10,268,000	137,000
Debt conversion, converted amount			$ 31,000,000.0	12,500,000
2023 Unsecured SPA Notes | Notes Payable | Class A Common Stock
Debt Instrument [Line Items]
Debt instrument, fixed conversion price percentage			90.00%
Gain (loss) extinguishments of debt			$ (31,500,000)	$ (9,200,000)
Minimum | Secured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate			10.00%	10.00%
Minimum | 2023 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate			10.00%	10.00%
Maximum | Secured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate			15.00%	15.00%
Maximum | 2023 Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable bearing interest rate			15.00%	15.00%