Loans (Payment Modifications) (Details) - CARES Act $ in Thousands	Jun. 30, 2020 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	847,000
Loan Balance | $	$ 304,357
% of Loan Type (excludes PPP Loans)	10.40%
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	257,000
Loan Balance | $	$ 54,300
% of Loan Type (excludes PPP Loans)	10.80%
Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	392,000
Loan Balance | $	$ 224,664
% of Loan Type (excludes PPP Loans)	15.30%
Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	8,000
Loan Balance | $	$ 1,175
% of Loan Type (excludes PPP Loans)	0.30%
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	80,000
Loan Balance | $	$ 1,115
% of Loan Type (excludes PPP Loans)	0.40%
Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	110,000
Loan Balance | $	$ 23,103
% of Loan Type (excludes PPP Loans)	8.20%