Nature of the Business and Basis of Presentation - Narrative3 (Details)					12 Months Ended	16 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 10, 2021 USD ($) shares	Jun. 09, 2021 $ / shares shares	Feb. 09, 2007 shares	Dec. 31, 2023 USD ($) member $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares
Schedule of Equity Method Investments [Line Items]
Total proceeds | $		$ 150,000,000			$ 53,136,000	$ 70,339,000
Outstanding (in shares)		2,930,711
Recapitalization exchange ratio		27.80
Price per share of stock sold (in dollars per share) | $ / shares			$ 10.00
Merger consideration | $		$ 894,628,000
Enterprise value | $		900,000,000
Liabilities incurred | $		5,372,000
Number of Board of Directors members (in members) | member					9
Number of designated Board of Directors members (in members) | member					7
Proceeds from reverse recapitalization | $		399,511,000
Proceeds from issuance of private placement | $		150,000,000
Transaction cost payments | $		43,463,000
Repayments of assumed debt | $		$ 15,607,000
Transaction costs paid | $	$ 29,770,000
Transaction costs paid by counterparty | $	$ 21,848,000
Escrow Shares
Schedule of Equity Method Investments [Line Items]
Earn-out liability (in shares)		3,450,000
Earnout shares
Schedule of Equity Method Investments [Line Items]
Earn-out liability (in shares)		10,000,000
Class G
Schedule of Equity Method Investments [Line Items]
SAFEs converted into Class A units (in shares)		10,019
Outstanding (in shares)		10,019
Common Unit, Class C, D, E and F
Schedule of Equity Method Investments [Line Items]
Outstanding (in shares)			1,251,566
Class A
Schedule of Equity Method Investments [Line Items]
Number of shares issued in transaction (in shares)				911,500
Outstanding (in shares)		1,381,424
Class A | Conversion of Class A units
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares converted (in shares)		77,497,793
Class B
Schedule of Equity Method Investments [Line Items]
Outstanding (in shares)		293,221
Class B | Conversion of Class B units
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares converted (in shares)		9,564,150
Private Placement Warrants | Thunder Bridge Acquisition II, Ltd
Schedule of Equity Method Investments [Line Items]
Warrants outstanding (in shares)			8,650,000
Working Capital Warrants
Schedule of Equity Method Investments [Line Items]
Warrants issued upon conversion (in shares)					1,500,000
Class A
Schedule of Equity Method Investments [Line Items]
SAFEs converted into Class A units (in shares)			284,925
Conversion of stock, shares issued (in shares)			8,625,000
Number of shares issued in transaction (in shares)		15,000,000			5,219,500	7,351,259
Price per share of stock sold (in dollars per share) | $ / shares					$ 10.18	$ 10.18
Class A | Conversion of Class A units
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares issued (in shares)		43,670,422
Class A | Conversion of Class B units
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares issued (in shares)		9,564,150
Class A | First convertible subordinated note | Convertible debt
Schedule of Equity Method Investments [Line Items]
SAFEs converted into Class A units (in shares)			185,000
Class A | Class B
Schedule of Equity Method Investments [Line Items]
Shares subject to vesting (in shares)		1,791,147
Class C | Second convertible subordinated note | Convertible debt
Schedule of Equity Method Investments [Line Items]
SAFEs converted into Class A units (in shares)			100,000
Common Stock Class V | Conversion of Class A units
Schedule of Equity Method Investments [Line Items]
Conversion of stock, shares issued (in shares)		33,827,371
Thunder Bridge Acquisition II, Ltd
Schedule of Equity Method Investments [Line Items]
Redemption of shares (in shares)			9,877,106
Thunder Bridge Acquisition II, Ltd | Class A
Schedule of Equity Method Investments [Line Items]
SAFEs converted into Class A units (in shares)			24,622,894
Warrants outstanding (in shares)			17,250,000