Consolidated Statement of Stockholders' Equity - USD ($)	Total	Class A Common Shares	Class B Common Shares	Common Shares Class A Common Shares	Common Shares Class B Common Shares	Additional Paid in Capital	Accumulated Deficit	Class B Common Treasury Shares
Beginning balance (in shares) at Dec. 31, 2021				50,000	14,882,022
Beginning balance at Dec. 31, 2021	$ 431,600,000			$ 0	$ 0	$ 550,000,000.0	$ (114,100,000)	$ (4,300,000)
Beginning balance (in shares) at Dec. 31, 2021								123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Consideration for acquisition (in shares)					1,048,718
Consideration for acquisition	26,500,000					26,500,000
Shares cancelled in connection with Freedom acquisition (in shares)					(2,446)
Stock-based compensation (in shares)					255,970
Stock-based compensation	9,400,000					9,400,000
Net loss	(261,500,000)						(261,500,000)
Ending balance (in shares) at Dec. 31, 2022		50,000	16,184,264	50,000	16,184,264
Ending balance at Dec. 31, 2022	$ 206,000,000.0			$ 0	$ 0	585,900,000	(375,600,000)	$ (4,300,000)
Ending balance (in shares) at Dec. 31, 2022	123,089							123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Rights offering, net of costs (in shares)					18,181,818
Rights offering, net of costs	$ 98,400,000					98,400,000
Stock-based compensation (in shares)					705,873
Stock-based compensation	12,000,000.0					12,000,000.0
Tax withholding for vesting of restricted stock units and other	(1,400,000)					(1,400,000)
Issuance of warrant	6,100,000					6,100,000
Net loss	(215,500,000)						(215,500,000)
Ending balance (in shares) at Dec. 31, 2023		50,000	35,071,955	50,000	35,071,955
Ending balance at Dec. 31, 2023	$ 105,600,000			$ 0	$ 0	$ 701,000,000.0	$ (591,100,000)	$ (4,300,000)
Ending balance (in shares) at Dec. 31, 2023	123,089							123,089