Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Funded loans unpaid principal	$ 39,500.0
Letters of credit outstanding	215.2
Accrued loan loss	66.2	$ 65.1
Assets available for recourse	894.6
Guarantees total	388.9
Commitments to investment in future real estate investment	$ 93.1
Maximum Future Commitments Equity In Real Estate Investment, Percent	2.00%
Commitments to investment in future real estate investment	0.50
Commitment to investment in consolidated projects	$ 135.3
Commitments to investment in unconsolidated real estate subsidiary	96.7
Warehouse Receivable
Loss Contingencies [Line Items]
Warehouse receivables	452.5
Funded loans subject to loss sharing arrangements
Loss Contingencies [Line Items]
Funded loans unpaid principal	35,800.0
Letters of credit outstanding	125.0	113.0
SBL Program
Loss Contingencies [Line Items]
Letters of credit outstanding	$ 5.0	$ 5.0
Percentage of maximum original principal amount loan loss	10.00%
Funded loans not subject to loss sharing arrangements
Loss Contingencies [Line Items]
Letters of credit outstanding	$ 130.0

Assets available for recourse under the Fannie Mae DUS lender program.

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The reporting entity's aggregate commitments to fund future co-investments with its clients in certain real estate investments.

+ References

No definition available.

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Principal amount outstanding as of the balance-sheet date of loans funded as part of a loss sharing arrangement with a third party.

+ References

No definition available.

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Maximum potential amount of future payments (undiscounted) the reporting entity could be required to make excluding (1) those for which the reporting entity has an outstanding liability already accrued on its consolidated statement of financial position and (2) completion and budget guarantees relating to the reporting entity's Development Services segment.

+ References

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Investment Funds, Maximum Equity In Real Estate Investment, Percent

+ References

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The reporting entity's estimate of loss sharing reserves on loans originated that are subject to a loss sharing arrangement with a third party.

+ References

No definition available.

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- Definition

Other Commitment, Capital Investment In Consolidated Projects

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Other Commitment, Capital Investment In Unconsolidated Entity

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Maximum original principal amount loan loss percentage.

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Real Estate Investments, Maximum Equity In Real Estate Investment, Percent

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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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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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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