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OTHER COMPREHENSIVE INCOME (LOSS) Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
AFS Securities: |  |  |  |
Unrealized holding gains, pre-tax amount | $ 9,082 | $ 13,835 | $ 33,197 | $ 27,719
Unrealized holdings gains, tax (expense) benefit | (1,952) | (2,975) | (7,137) | (5,960)
Unrealized holdings gains, after-tax amount | 7,130 | 10,860 | 26,060 | 21,759
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax | 0 | 27 | 0 | 27
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax | 0 | (6) | 0 | (6)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax | 0 | 21 | 0 | 21
Net unrealized gains, pre-tax amount | 9,082 | 13,808 | 33,197 | 27,692
Net unrealized gains, tax (expense) benefit | (1,952) | (2,969) | (7,137) | (5,954)
Net unrealized gains, after-tax amount | 7,130 | 10,839 | 26,060 | 21,738
Cash Flow Hedges: |  |  |  |
Net decrease in fair value, pre-tax amount | (14) | (1,533) | (1,162) | (2,711)
Net decrease in fair value, tax (expense) benefit | 3 | 330 | 250 | 583
Net decrease in fair value, after-tax amount | (11) | (1,203) | (912) | (2,128)
Less: effective portion reclassified into interest expense, after-tax amount |  |  | (210) | (251)
Net decrease in fair value, pre-tax amount | 66 | (1,332) | (894) | (2,391)
Net decrease in fair value, tax (expense) benefit | (14) | 286 | 192 | 514
Net decrease in fair value, after-tax amount | 52 | (1,046) | (702) | (1,877)
Postretirement Plans: |  |  |  |
Net actuarial gain, pre-tax amount | 175 | 67 | 351 | 134
Net actuarial gain, tax (expense) benefit | (37) | (15) | (76) | (29)
Net actuarial gain, after-tax amount | 138 | 52 | 275 | 105
Less: Amortiaztion of net prior service credits, pre-tax amount | 6 | 6 | 12 | 12
Less: Amortiaztion of net prior service credits, tax (expense) benefit | (1) | (2) | (3) | (3)
Less: Amortiaztion of net prior service credits, after-tax amount | 5 | 4 | 9 | 9
Net gain on postretirement plans, pre-tax amount | 169 | 61 | 339 | 122
Net gain on postretirement plans, tax (expense) benefit | (36) | (13) | (73) | (26)
Net gain on postretirement plans, net of tax | 133 | 48 | 266 | 96
Other comprehensive income, pre-tax amount | 9,317 | 12,537 | 32,642 | 25,423
Other comprehensive income, tax (expense) benefit | (2,002) | (2,696) | (7,018) | (5,466)
Other comprehensive income | 7,315 | 9,841 | 25,624 | 19,957
Interest Expense, Borrowings |  |  |  |
Cash Flow Hedges: |  |  |  |
Less: effective portion reclassified into interest expense, pre-tax amount | (327) | (201) | (567) | (320)
Less: effective portion reclassified into interest expense, tax (expense) benefit | 70 | 44 | 122 | 69
Less: effective portion reclassified into interest expense, after-tax amount | (257) | (157) | (445) | (251)
Interest Income, Interest and Fees on Loans |  |  |  |
Cash Flow Hedges: |  |  |  |
Less: effective portion reclassified into interest expense, pre-tax amount | 247 | 0 | 299 | 0
Less: effective portion reclassified into interest expense, tax (expense) benefit | (53) | 0 | (64) | 0
Less: effective portion reclassified into interest expense, after-tax amount | $ 194 | $ 0 | $ 235 | $ 0

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