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Significant Accounting Policies (Details) - Accounting Standards Update 2020-04 [Member] $ in Millions	Sep. 30, 2021 USD ($)
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based asset and liabilities exposure percent	5.90%
Subordinated Capital Loan [Member]
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based exposure amount	$ 36.1
Interest Rate Swap [Member]
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based exposure amount	28.9
Interest Rate Cap [Member]
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based exposure amount	26.2
Commercial [Member] | Adjustable Rate Loans [Member]
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based exposure amount	491.8
Mortgage [Member] | Variable Income Interest Rate [Member]
Organization, Consolidation and Basis of Presentation [Line Items]
LIBOR-based exposure amount	$ 42.8

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LIBOR-Based Asset And Liabilities Exposure, Percent

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LIBOR-Based Exposure Amount

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