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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 12 Months Ended
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Dec. 31, 2021
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS). |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 3. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Activity in accumulated other comprehensive income (loss), net of tax, was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Accumulated
​ | ​ | ​ | ​ | Defined | ​ | ​ | ​ | ​ | Other
​ | ​ | ​ | ​ | Benefit | ​ | ​ | ​ | ​ | Comprehensive
(In thousands) |  | Securities |  | Plans |  | Derivatives |  | Income (Loss)
Balance as of January 1, 2020 | ​ | $ | 4,621 | ​ | $ | (6,024) | ​ | $ | (4,537) | ​ | $ | (5,940)
Other comprehensive income (loss) before reclassifications | ​ |  | 11,221 | ​ |  | 802 | ​ |  | (12,153) | ​ |  | (130)
Amounts reclassified from accumulated other comprehensive loss | ​ |  | (3,148) | ​ |  | (864) | ​ |  | 4,158 | ​ |  | 146
Net other comprehensive income (loss) during the period | ​ |  | 8,073 | ​ |  | (62) | ​ |  | (7,995) | ​ |  | 16
Balance as of December 31, 2020 | ​ | $ | 12,694 | ​ | $ | (6,086) | ​ | $ | (12,532) | ​ | $ | (5,924)
Other comprehensive (loss) income before reclassifications | ​ |  | (19,733) | ​ |  | 5,520 | ​ |  | 14,883 | ​ |  | 670
Amounts reclassified from accumulated other comprehensive loss | ​ |  | (825) | ​ |  | (740) | ​ |  | 638 | ​ |  | (927)
Net other comprehensive (loss) income during the period | ​ |  | (20,558) | ​ |  | 4,780 | ​ |  | 15,521 | ​ |  | (257)
Balance as of December 31, 2021 | ​ | $ | (7,864) | ​ | $ | (1,306) | ​ | $ | 2,989 | ​ | $ | (6,181)
​ The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the table below for the periods indicated. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(In thousands) |  | 2021 |  | 2020 |  | 2019
Change in unrealized holding gain or loss on securities: | ​ |  |  | ​ |  |  | ​ |  |
Change in net unrealized gain or loss during the period | ​ | $ | (28,865) | ​ | $ | 16,432 | ​ | $ | 9,693
Reclassification adjustment for net gains included in net gain on securities and other assets | ​ |  | (1,207) | ​ |  | (4,592) | ​ |  | (31)
Net change | ​ |  | (30,072) | ​ |  | 11,840 | ​ |  | 9,662
Tax (benefit) expense | ​ |  | (9,514) | ​ |  | 3,767 | ​ |  | 3,084
Net change in unrealized holding gain or loss on securities, net of reclassification adjustments and tax | ​ |  | (20,558) | ​ |  | 8,073 | ​ |  | 6,578
Change in pension and other postretirement obligations: | ​ |  |  | ​ |  |  | ​ |  |
Reclassification adjustment for expense included in other expense | ​ |  | (1,092) | ​ |  | (1,272) | ​ |  | 729
Reclassification adjustment for curtailment loss (gain) | ​ | ​ | 1,543 | ​ | ​ | (1,651) | ​ | ​ | —
Change in the net actuarial gain or loss | ​ |  | 6,563 | ​ |  | 2,817 | ​ |  | (296)
Net change | ​ |  | 7,014 | ​ |  | (106) | ​ |  | 433
Tax expense | ​ |  | 2,234 | ​ |  | (44) | ​ |  | 167
Net change in pension and other postretirement obligations | ​ |  | 4,780 | ​ |  | (62) | ​ |  | 266
Change in unrealized gain or loss on derivatives: | ​ |  |  | ​ |  |  | ​ |  |
Change in net unrealized gain or loss during the period | ​ |  | 5,277 | ​ |  | (24,449) | ​ |  | (8,254)
Reclassification adjustment for loss included in loss on termination of derivatives | ​ | ​ | 16,505 | ​ | ​ | 6,596 | ​ | ​ | —
Reclassification adjustment for expense included in interest expense | ​ |  | 940 | ​ |  | 6,127 | ​ |  | (955)
Net change | ​ |  | 22,722 | ​ |  | (11,726) | ​ |  | (9,209)
Tax expense (benefit) | ​ |  | 7,201 | ​ |  | (3,731) | ​ |  | (2,925)
Net change in unrealized gain or loss on derivatives, net of reclassification adjustments and tax | ​ |  | 15,521 | ​ |  | (7,995) | ​ |  | (6,284)
Other comprehensive (loss) income, net of tax | ​ | $ | (257) | ​ | $ | 16 | ​ | $ | 560
​

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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