Loans - Loan Modification Under The CARES Act (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) payment_deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of payment deferral | payment_deferral	23
Loan balance	$ 661,482
Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	65,742
Commercial Real Estate | Hospitality
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	53,711
Commercial Real Estate | Health Club
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	14,775
Commercial Real Estate | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	130,202
Commercial Real Estate | Commercial/Office/Retail
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	101,195
Commercial Real Estate | Residential mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	45,722
Commercial Real Estate | Home improvement and home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	114
Commercial Real Estate | All other CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	136,019
Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	51,587
Installment and student loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	62,415
COVID-19
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	69,814
COVID-19 | Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	667
COVID-19 | Commercial Real Estate | Hospitality
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	39,757
COVID-19 | Commercial Real Estate | Health Club
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	14,775
COVID-19 | Commercial Real Estate | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	10,836
COVID-19 | Commercial Real Estate | Commercial/Office/Retail
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	2,687
COVID-19 | Commercial Real Estate | Residential mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	0
COVID-19 | Commercial Real Estate | Home improvement and home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	0
COVID-19 | Commercial Real Estate | All other CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	1,058
COVID-19 | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	0
COVID-19 | Installment and student loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan balance	$ 34