Variable Interest Entities - Additional Information (Details) $ in Millions	Dec. 31, 2023 USD ($) Property	Dec. 31, 2022 Property
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Variable Interest Entities | Property	33	35
Investments in Unconsolidated Entities [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	$ 49.4
Mortgage Revenue Bonds [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	125.6
Taxable Mortgage Revenue Bonds [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	16.4
Governmental Issuer Loans [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	51.1
Taxable Governmental Issuer Loans [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	53.6
Property Loans [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	$ 19.9