Loans - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	$ 2,617,072	$ 2,565,798	$ 2,535,615
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	4,590
Real Estate | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Real Estate | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	3,913
Real Estate | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Real Estate | Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	677
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	677
Residential Real Estate | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Residential Real Estate | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Residential Real Estate | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Residential Real Estate | Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	677
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	3,913
Commercial Real Estate | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Commercial Real Estate | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	3,913
Commercial Real Estate | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	0
Commercial Real Estate | Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Loans	$ 0