Loans and Leases - Collateral Dependent Loans Held for Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	$ 51,221	$ 76,522
Real Estate Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	28,195	43,656
Real Estate Construction and Land
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	19,364	1,766
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	3,662	31,100
Real Estate Properties [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	47,559	45,422
Real Estate Properties [Domain] | Real Estate Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	28,195	43,656
Real Estate Properties [Domain] | Real Estate Construction and Land
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	19,364	1,766
Real Estate Properties [Domain] | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0	0
Business Assets [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	3,662	31,100
Business Assets [Member] | Real Estate Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0	0
Business Assets [Member] | Real Estate Construction and Land
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0	0
Business Assets [Member] | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	$ 3,662	$ 31,100