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Comprehensive Income (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items] |  |  |
OTTI losses Tax benefit (expense) |  |  | $ 178
Sale of investment securities available-for-sale Net investment securities gains | $ (2,991) | $ 6,966 | (8,741)
Sale of investment securities available-for-sale Tax benefit (expense) | (1,196) | 2,635 | (3,578)
Total reclassification Net of tax | $ (3,595) | 1,530 | (7,607)
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items] |  |  |
OTTI losses Net investment securities gains |  |  | 652
OTTI losses Tax benefit (expense) |  |  | 178
OTTI losses Net of tax |  |  | (474)
Sale of investment securities available-for-sale Net investment securities gains | $ 3,931 | 2,818 | 2,363
Sale of investment securities available-for-sale Tax benefit (expense) | (1,564) | (986) | (645)
Sale of investment securities available-for-sale Net of tax | 2,367 | 1,832 | 1,718
Amortization of unrealized holding (losses) gains on securities transferred from available-for-sale to held-to-maturity Interest income | (220) | (215) | 58
Amortization of unrealized holding (losses) gains on securities transferred from available-for-sale to held-to-maturity Tax benefit (expense) | 90 | 91 | (19)
Amortization of unrealized holding (losses) gains on securities transferred from available-for-sale to held-to-maturity Net of tax | (130) | (124) | 39
Amortization of net pension actuarial losses | (443) | 204 | (654)
Pension plan actuarial losses Tax benefit (expense) | 177 | (83) | 267
Pension plan actuarial losses Net of tax | (256) | 121 | (387)
Total reclassification Net of tax | $ 1,981 | $ 1,587 | $ 896

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