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Related Party Transactions - Clearing Capital Agreement with Cantor (Details) - Related Party - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Related Party Transaction [Line Items]
Cash and collateral posted expense	$ 1.3	$ 0.9	$ 2.2	$ 1.9
Collateral already posted, aggregate fair value	$ 75.2		$ 75.2		$ 124.6

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- Definition

Cash And Collateral Posted Expense

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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