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Comprehensive Income Reclassification Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Total before tax | $ 45,305 | $ 39,855 | $ 37,749
Provision for Income Taxes | (9,026) | (10,529) | (11,215)
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Net of tax | (322) | (691) | (441)
Accumulated Net Unrealized Investment Gain (Loss) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Salaries and Employee Benefits |  | (448) | (22)
Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Loss on Securities Transactions, Net | 0 | (448) | (22)
Total before tax | 0 | (448) | (22)
Provision for Income Taxes | 0 | 111 | 9
Net of tax | 0 | (337) | (13)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Salaries and Employee Benefits | (108) | 11 | 12
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Salaries and Employee Benefits | (108) | 11 | 12
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Salaries and Employee Benefits | (325) | (411) | (716)
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Salaries and Employee Benefits | (325) | (411) | (716)
Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Total before tax | (433) | (400) | (704)
Provision for Income Taxes | 111 | 46 | 276
Net of tax | $ (322) | $ (354) | $ (428)

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