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OTHER COMPREHENSIVE INCOME (LOSS) Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
AFS Securities: |  |  |  |
Unrealized holding gains, pre-tax amount | $ (746) | $ 4,551 | $ 32,451 | $ 32,270
Unrealized holdings gains, tax (expense) benefit | 160 | (978) | (6,977) | (6,938)
Unrealized holdings gains, after-tax amount | (586) | 3,573 | 25,474 | 25,332
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax | 0 | 1 | 0 | 28
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax | 0 | 0 | 0 | (6)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax | 0 | 1 | 0 | 22
Net unrealized gains, pre-tax amount | (746) | 4,550 | 32,451 | 32,242
Net unrealized gains, tax (expense) benefit | 160 | (978) | (6,977) | (6,932)
Net unrealized gains, after-tax amount | (586) | 3,572 | 25,474 | 25,310
Cash Flow Hedges: |  |  |  |
Net decrease in fair value, pre-tax amount | 688 | (394) | (418) | (3,105)
Net decrease in fair value, tax (expense) benefit | (148) | 84 | 90 | 667
Net decrease in fair value, after-tax amount | 540 | (310) | (328) | (2,438)
Less: effective portion reclassified into interest expense, after-tax amount |  |  | (298) | (520)
Net decrease in fair value, pre-tax amount | 856 | (52) | (38) | (2,443)
Net decrease in fair value, tax (expense) benefit | (184) | 11 | 8 | 525
Net decrease in fair value, after-tax amount | 672 | (41) | (30) | (1,918)
Postretirement Plans: |  |  |  |
Net actuarial gain, pre-tax amount | 175 | 68 | 526 | 202
Net actuarial gain, tax (expense) benefit | (37) | (14) | (113) | (43)
Net actuarial gain, after-tax amount | 138 | 54 | 413 | 159
Less: Amortiaztion of net prior service credits, pre-tax amount | 6 | 6 | 18 | 18
Less: Amortiaztion of net prior service credits, tax (expense) benefit | (1) | (1) | (4) | (4)
Less: Amortiaztion of net prior service credits, after-tax amount | 5 | 5 | 14 | 14
Net gain on postretirement plans, pre-tax amount | 169 | 62 | 508 | 184
Net gain on postretirement plans, tax (expense) benefit | (36) | (13) | (109) | (39)
Net gain on postretirement plans, net of tax | 133 | 49 | 399 | 145
Other comprehensive income, pre-tax amount | 279 | 4,560 | 32,921 | 29,983
Other comprehensive income, tax (expense) benefit | (60) | (980) | (7,078) | (6,446)
Other comprehensive income | 219 | 3,580 | 25,843 | 23,537
Interest Expense, Borrowings |  |  |  |
Cash Flow Hedges: |  |  |  |
Less: effective portion reclassified into interest expense, pre-tax amount | (479) | (342) | (990) | (662)
Less: effective portion reclassified into interest expense, tax (expense) benefit | 103 | 73 | 213 | 142
Less: effective portion reclassified into interest expense, after-tax amount | (376) | (269) | (777) | (520)
Interest Income, Interest and Fees on Loans |  |  |  |
Cash Flow Hedges: |  |  |  |
Less: effective portion reclassified into interest expense, pre-tax amount | 311 | 0 | 610 | 0
Less: effective portion reclassified into interest expense, tax (expense) benefit | (67) | 0 | (131) | 0
Less: effective portion reclassified into interest expense, after-tax amount | $ 244 | $ 0 | $ 479 | $ 0

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