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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, 2020 | Dec. 31, 2019
--- | --- | ---
Financial Assets: |  |
Trading securities | $ 4,161 | $ 3,799
AFS securities | 1,115,813 | 918,118
Equity securities - bank stock, Fair Value |  | 1,674
Loans Held-for-sale | 41,557 | 11,854
Other Investments | 11,542 | 13,649
Financial Liabilities: |  |
Trading securities | 4,161 | 3,799
Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 127,120 | 118,083
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] |  |
Financial Assets: |  |
AFS securities | 566,618 | 463,386
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities | 410,454 | 325,905
Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Trading securities | 4,161 | 3,799
Loans Held-for-sale | 41,557 | 11,854
Financial Liabilities: |  |
Trading securities | 4,161 | 3,799
Junior subordinated debt interest rate swaps |  | 8,187
Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 127,120 | 118,083
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] |  |
Financial Assets: |  |
AFS securities | 566,618 | 463,386
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities | 410,454 | 325,905
Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 11,621 | 10,744
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Trading securities | 4,161 | 3,799
Loans Held-for-sale | 0 | 0
Financial Liabilities: |  |
Trading securities | 4,161 | 3,799
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities |  | 0
Readily Available Market Prices (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Trading securities | 0 | 0
Loans Held-for-sale | 41,557 | 11,854
Financial Liabilities: |  |
Trading securities | 0 | 0
Junior subordinated debt interest rate swaps |  | 8,187
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of states and political subdivisions |  |
Financial Assets: |  |
AFS securities | 127,120 | 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 | 566,618 | 463,386
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 | 410,454 | 325,905
Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 11,621 | 10,744
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Trading securities | 0 | 0
Loans Held-for-sale | 0 | 0
Financial Liabilities: |  |
Trading securities | 0 | 0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial Assets: |  |
AFS securities |  | 0
Company Determined Fair Value (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member] |  |
Financial Assets: |  |
AFS securities | 0 | 0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 39,627 | 17,756
Financial Liabilities: |  |
Customer interest rate swaps | 39,627 | 17,756
Interest Rate Swap [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 39,627 | 17,756
Financial Liabilities: |  |
Customer interest rate swaps | 39,627 | 17,756
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 608 | 480
Financial Liabilities: |  |
Customer interest rate swaps | 248 | 18
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 608 | 480
Financial Liabilities: |  |
Customer interest rate swaps | 248 | 18
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 | 311 | 312
Financial Liabilities: |  |
Customer interest rate swaps | 196 | 15
Forward Contracts [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Customer interest rate swaps | 311 | 312
Financial Liabilities: |  |
Customer interest rate swaps | 196 | 15
Junior Subordinated Debt Interest Rate Swap |  |
Financial Assets: |  |
Derivative Asset | 562 |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 10,912 | 8,187
Junior Subordinated Debt Interest Rate Swap | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Derivative Asset | 562 |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 10,912 |
Junior Subordinated Debt Interest Rate Swap | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Derivative Asset | 562 |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 10,912 |
Interest Rate Swap On Loans [Member] |  |
Financial Assets: |  |
Derivative Asset | 5,169 | 483
Interest Rate Swap On Loans [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Derivative Asset | 5,169 | 483
Interest Rate Swap On Loans [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Derivative Asset | 5,169 | 483
Interest Rate Swap on Borrowings |  |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 713 |
Interest Rate Swap on Borrowings | Fair Value, Measurements, Recurring [Member] |  |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | 713 |
Interest Rate Swap on Borrowings | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Liabilities: |  |
Junior subordinated debt interest rate swaps | $ 713 |
Other Assets [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Equity securities - bank stock, Fair Value |  | 1,674
Other Assets [Member] | Observable Market Data (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] |  |
Financial Assets: |  |
Equity securities - bank stock, Fair Value |  | $ 1,674

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