Loans and Leases - Collateral Dependent Loans Held for Investment (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	$ 75,422
Real Estate Properties [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	47,286
Business Assets [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	28,136
Real Estate Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	45,504
Real Estate Mortgage | Real Estate Properties [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	45,504
Real Estate Mortgage | Business Assets [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0
Real Estate Construction and Land
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	1,782
Real Estate Construction and Land | Real Estate Properties [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	1,782
Real Estate Construction and Land | Business Assets [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	28,136
Consumer | Real Estate Properties [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	0
Consumer | Business Assets [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Collateral-dependent Finance Receivable	$ 28,136