Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Additions to deferred tax asset	$ 582,600,000	$ 324,400,000
Deferred tax asset related to U.S. federal net operating loss carryforwards	56,500,000
Deferred tax asset related to U.S. state net operating loss carryforwards	$ 11,600,000
Operating loss carryforward expiration year	2029
Unrecognized tax benefits	$ 0
Class A Shares
Operating Loss Carryforwards [Line Items]
Additions to deferred tax asset	$ 329,800,000	$ 185,100,000	$ 86,400,000