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COMPREHENSIVE INCOME (LOSS) - Components (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
COMPREHENSIVE INCOME (LOSS) |  |  |  |
Unrealized holding gains (losses) on available-for-sale debt securities | $ (6,663) | $ (20,018) | $ 2,330 | $ (52,043)
Unrealized holding gains (losses) on available-for-sale debt securities, Income Tax Effect | 1,397 | 4,202 | (491) | 10,928
Unrealized holding gains (losses) on available-for-sale debt securities, Net of Tax Amount | (5,266) | (15,816) | 1,839 | (41,115)
Reclassification adjustment for (gains) realized in income | 1 | 1 | (6) | (1)
Reclassification adjustment for (gains) losses realized in income, Income Tax Effect | 0 | 0 | 1 | 0
Reclassification adjustment for (gains) losses realized in income. Net of Tax Amount | 1 | 1 | (5) | (1)
Other comprehensive income (loss) from available-for-sale debt securities, Before-Tax Amount | (6,662) | (20,017) | 2,324 | (52,044)
Other comprehensive income (loss) on available-for-sale debt securities, Income tax effect | 1,397 | 4,202 | (490) | 10,928
Other comprehensive income (loss) from available-for-sale debt securities, Net-of-Tax Amount | (5,265) | (15,815) | 1,834 | (41,116)
Changes from plan amendments and actuarial gains and losses, Before-Tax Amount | 0 | 0 | (8) | 133
Changes from plan amendments and actuarial gains and losses, Income Tax Effect |  |  | 1 | (27)
Changes from plan amendments and actuarial gains and losses, Net-of-Tax Amount |  |  | (7) | 106
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost, Before-Tax Amount | (14) | (11) | (28) | (22)
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost, Income Tax Effect | 3 | 2 | 6 | 4
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost, Net-of-Tax Amount | (11) | (9) | (22) | (18)
Other comprehensive (loss) income on pension and postretirement obligations | (14) | (11) | (36) | 111
Other comprehensive income (loss) on unfunded retirement obligations, Income Tax Effect | 3 | 2 | 7 | (23)
Other comprehensive income (loss) on unfunded retirement obligations, Net-of-Tax Amount | (11) | (9) | (29) | 88
Total Other comprehensive (loss) income before income tax | (6,676) | (20,028) | 2,288 | (51,933)
Total other comprehensive income (loss), Income Tax Effect | 1,400 | 4,204 | (483) | 10,905
Total other comprehensive income (loss), Net-of-Tax Amount | $ (5,276) | $ (15,824) | $ 1,805 | $ (41,028)

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