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Comprehensive Income (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Sale of investment securities available-for-sale Net gains on sale investment securities | $ 7,005 | $ 11,286 | $ (6,444)
Sale of investment securities available-for-sale Income tax expense | 1,847 | 2,923 | (1,638)
Net interest (expense) income on swaps - Interest expense | 1,600 | (700) | (500)
Net interest (expense) income on swaps Income tax expense (benefit) | 443 | (190) | (130)
Net interest (expense) income on swaps | 1,134 | (487) | (334)
Total reclassification | 3,944 | 7,642 | (4,116)
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Sale of investment securities available-for-sale Net gains on sale investment securities | 29 | (280) |
Sale of investment securities available-for-sale Income tax expense | (6) | 79 |
Sale of investment securities available-for-sale | 23 | (201) |
Net interest (expense) income on swaps - Interest expense | (1,577) | 677 | 464
Net interest (expense) income on swaps | (1,134) | 487 | 334
Amortization of pension plan net actuarial losses - other components of net periodic pension expense | (301) | (358) | (359)
Amortization of pension plan net actuarial losses Income tax benefit | 84 | 101 | 101
Amortization of pension plan net actuarial losses | (217) | (257) | (258)
Total reclassification | $ (1,328) | $ 29 | $ 76

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