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Comprehensive Income (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items] |  |
Sale of securities available-for-sale Net gains on sale of securities available-for-sale | $ 6,252 | $ 5,558
Sale of securities available-for-sale Income tax expense | (1,691) | (1,422)
Net interest income on swaps - Borrowings | 7 | 182
Net interest income on swaps Income tax expense | (2) | (40)
Net interest income on swaps | (5) | (142)
Total reclassification | 2,611 | 3,509
Amounts Reclassified from Accumulated Other Comprehensive Income/(Loss) [Member] |  |
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items] |  |
Sale of securities available-for-sale Net gains on sale of securities available-for-sale | 29 | 8
Sale of securities available-for-sale Income tax expense | (6) | (2)
Sale of securities available-for-sale | 23 | 6
Net interest income on swaps - Borrowings | 7 | 182
Net interest income on swaps Income tax expense | (2) | (40)
Net interest income on swaps | 5 | 142
Amortization of pension plan net actuarial losses - other components of net periodic pension expense | (75) | (89)
Amortization of pension plan net actuarial losses Income tax benefit | 21 | 25
Amortization of pension plan net actuarial losses | (54) | (64)
Total reclassification | $ (26) | $ 84

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