Variable Interest Entities - Additional Information (Details) $ in Millions	Jun. 30, 2024 USD ($) Property	Dec. 31, 2023 Property
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Variable Interest Entities | Property	30	33
Investments in Unconsolidated Entities [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	$ 36.7
Mortgage Revenue Bonds [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	81.8
Taxable Mortgage Revenue Bonds [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	15.4
Governmental Issuer Loans [Member] | Non-Consolidated VIEs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum exposure to loss, funding commitments	36.1
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	$ 1.0