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Fair Value (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Held-for-sale | $ 11,854 | $ 4,403
Financial Assets: |  |
AFS securities | 918,118 | 910,692
Other Investments | 13,649 | 14,679
Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 118,083 | 93,752
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] |  |
Financial Assets: |  |
AFS securities | 463,386 | 453,672
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities | 325,905 | 342,894
Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Held-for-sale | 11,854 | 4,403
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 8,187 | 5,682
Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 118,083 |
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] |  |
Financial Assets: |  |
AFS securities | 463,386 | 93,752
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities | 325,905 | 453,672
Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 10,744 | 342,894
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] |  |
Financial Assets: |  |
AFS securities |  | 20,374
Other Investments | 1,674 |
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Held-for-sale | 0 | 0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Held-for-sale | 11,854 | 4,403
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 8,187 | 5,682
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 118,083 |
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] |  |
Financial Assets: |  |
AFS securities | 463,386 | 93,752
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities | 325,905 | 453,672
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 10,744 | 342,894
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] |  |
Financial Assets: |  |
AFS securities |  | 20,374
Other Investments | 1,674 |
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Held-for-sale | 0 | 0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 17,756 | 7,841
Financial Liabilities: |  |
Customer interest rate swaps | 17,756 | 7,841
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 17,756 | 7,841
Financial Liabilities: |  |
Customer interest rate swaps | 17,756 | 7,841
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 480 | 95
Financial Liabilities: |  |
Customer interest rate swaps | 18 | 28
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 480 | 95
Financial Liabilities: |  |
Customer interest rate swaps | 18 | 28
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Liabilities: |  |
Customer interest rate swaps | 0 | 0
Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 312 | 32
Financial Liabilities: |  |
Customer interest rate swaps | 15 | 17
Forward Contracts [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 312 | 32
Financial Liabilities: |  |
Customer interest rate swaps | $ 15 | 17
Forward-Starting Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps |  | 30
Forward-Starting Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps |  | 30
Other Assets [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps |  | 746
Other Assets [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps |  | $ 746

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