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Comprehensive Income - Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Before-Tax Amount |  |
Other comprehensive income (loss), before tax | $ (3,062) | $ 5,300
Tax (Expense) Benefit |  |
Other comprehensive income (loss), tax | 782 | (1,355)
Net-of-Tax Amount |  |
Other comprehensive income (loss) before reclassifications | (2,337) | 3,879
Reclassification from AOCI, current period | 57 | 66
Other Comprehensive (Loss) Income | (2,280) | 3,945
Unrealized Gains and Losses on Available for Sale Securities |  |
Before-Tax Amount |  |
OCI, before reclassifications | (5,121) | 5,504
Tax (Expense) Benefit |  |
Other comprehensive income (loss) before reclassifications, tax | 1,309 | (1,406)
Net-of-Tax Amount |  |
Other comprehensive income (loss) before reclassifications | (3,812) | 4,098
Reclassification from AOCI, current period | 0 | 0
Other Comprehensive (Loss) Income | (3,812) | 4,098
Unrealized Loss on Cash Flow Swap |  |
Before-Tax Amount |  |
OCI, before reclassifications | 1,982 | (294)
Reclassification from AOCI, current period | (28) |
Tax (Expense) Benefit |  |
Other comprehensive income (loss) before reclassifications, tax | (507) | 75
Reclassification from AOCI, current period | 8 |
Net-of-Tax Amount |  |
Other comprehensive income (loss) before reclassifications | 1,475 | (219)
Reclassification from AOCI, current period | (20) | 0
Other Comprehensive (Loss) Income | 1,455 | (219)
Amortization of Net Retirement Plan Actuarial Gain (Loss) |  |
Before-Tax Amount |  |
Reclassification from AOCI, current period | 46 | 36
Tax (Expense) Benefit |  |
Reclassification from AOCI, current period | (12) | (9)
Net-of-Tax Amount |  |
Other comprehensive income (loss) before reclassifications | 0 | 0
Reclassification from AOCI, current period | 34 | 27
Other Comprehensive (Loss) Income | 34 | 27
Amortization of Defined Benefit Pension, Prior-Service Costs |  |
Before-Tax Amount |  |
Reclassification from AOCI, current period | 59 | 54
Tax (Expense) Benefit |  |
Reclassification from AOCI, current period | (16) | (15)
Net-of-Tax Amount |  |
Other comprehensive income (loss) before reclassifications | 0 | 0
Reclassification from AOCI, current period | 43 | 39
Other Comprehensive (Loss) Income | $ 43 | $ 39

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