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Commitments and Contingencies (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Financial Instruments [Line Items] |  |
Contractual Amounts Of Financial Instrument | $ 842,485 | $ 728,721
Commitments to Extend Credit [Member] |  |
Financial Instruments [Line Items] |  |
Contractual Amounts Of Financial Instrument | 834,533 | 723,986
Standby Letters of Credit [Member] |  |
Financial Instruments [Line Items] |  |
Contractual Amounts Of Financial Instrument | $ 7,952 | $ 4,735

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