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Guarantor Obligations, Close-Ended Term

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Number Of First Mortgage Multifamily Property Loans

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Number Of Insurers

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Number Of Loan Commitment Letters Issued

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Estimated amount of loss resulting from an adverse tax position.

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Amount of gain from litigation settlement for amount awarded from other party. Excludes claims within an insurance entity's normal claims settlement process.

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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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Amount of loss contingency liability.

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Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

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Commitments and Contingencies (Details) $ in Millions		3 Months Ended	12 Months Ended
Commitments and Contingencies (Details) $ in Millions	Sep. 30, 2024 USD ($) employee	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Nov. 27, 2023 property letter
Loss Contingencies [Line Items]
Contingent liabilities, current		$ 81.4	$ 81.4	$ 80.4
Contingent liabilities, non-current		59.9	59.9	53.1
Accrued payroll taxes		60.0	60.0
Estimated range of reasonably possible loss			$ 43.0
Closed-ended terms for guarantees			8 years
Maximum potential future payments on guarantees		106.8	$ 106.8
Number of insurers \| employee	1
Litigation settlement, gain	$ 17.3		$ 19.2
Additional litigation settlement, gain		$ 1.9
Greystone
Loss Contingencies [Line Items]
Number of loan commitment letters issued \| letter					1
Number of first mortgage multifamily property loans \| property					43
Equity method investment, ownership percentage		40.00%	40.00%		40.00%
Errors and Omissions (E&O) claims and other claims
Loss Contingencies [Line Items]
Contingent liabilities		$ 56.7	$ 56.7	55.4
Workers' compensation
Loss Contingencies [Line Items]
Contingent liabilities		84.6	84.6	78.1
Insurance recoverable
Loss Contingencies [Line Items]
Contingent liabilities		$ 0.8	$ 0.8	$ 0.8