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Loans (Revolving Loans Converted to Term) (Details) - Revolving Loans Converted to Term $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | $ 111,007
Commercial Portfolio Segment [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | 47,562
Commercial and Industrial Total Energy Loans [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | 33,150
Commercial Real Estate, Buildings, Land and Other [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | 10,505
Construction Loans [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | 1,131
Total consumer real estate loans [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | 2,264
Consumer Loan [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Remaining Revolving Loans Converted to Term During Period | $ 16,395

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