| **Income Tax (Details) - USD ($) $ in Thousands**              | 3 Months Ended | 6 Months Ended |
|----------------------------------------------------------------|----------------|----------------|
||
| **Reconciliation of Federal Statutory to Actual Tax Expense:** |           |           |   |   |
| Federal statutory income tax at 21%                            | $ 7,899        | $ 10,249       | $ 15,827 | $ 19,858 |
| Tax-exempt interest income                                     | (3,199)        | (2,403)        | (6,221) | (4,670) |
| Share-based compensation                                       | (6)            | (41)           | (6) | (391) |
| Tax-exempt earnings and gains on life insurance                | (278)          | (199)          | (564) | (406) |
| Tax credits                                                    | (89)           | (63)           | (150) | (141) |
| CARES Act - NOL carryback rate differential                    | 0              | 0              | (1,178) | 0 |
| Other                                                          | 296            | 206            | 405 | 440 |
| Actual Tax Expense                                             | $ 4,623        | $ 7,749        | $ 8,113 | $ 14,690 |
| Effective Tax Rate                                             | 12.30%         | 15.90%         | 10.80% | 15.50% |

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions.
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