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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 3 Months Ended
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Mar. 31, 2024
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, 2024 | ​ | $ | (90,242) | ​ | $ | (6,430) | ​ | $ | 5,093 | ​ | $ | (91,579)
Other comprehensive income (loss) before reclassifications | ​ |  | 2,360 | ​ |  | 361 | ​ |  | 1,457 | ​ |  | 4,178
Amounts reclassified from accumulated other comprehensive income (loss) | ​ |  | 490 | ​ |  | (216) | ​ |  | 1,661 | ​ |  | 1,935
Net other comprehensive income during the period | ​ |  | 2,850 | ​ |  | 145 | ​ |  | 3,118 | ​ |  | 6,113
Balance as of March 31, 2024 | ​ | $ | (87,392) | ​ | $ | (6,285) | ​ | $ | 8,211 | ​ | $ | (85,466)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance as of January 1, 2023 | ​ | $ | (100,870) | ​ | $ | (5,266) | ​ | $ | 11,757 | ​ | $ | (94,379)
Other comprehensive (loss) income before reclassifications | ​ |  | (4,313) | ​ |  | 155 | ​ |  | (1,172) | ​ |  | (5,330)
Amounts reclassified from accumulated other comprehensive income (loss) | ​ |  | 1,551 | ​ |  | (260) | ​ |  | (220) | ​ |  | 1,071
Net other comprehensive loss during the period | ​ |  | (2,762) | ​ |  | (105) | ​ |  | (1,392) | ​ |  | (4,259)
Balance as of March 31, 2023 | ​ | $ | (103,632) | ​ | $ | (5,371) | ​ | $ | 10,365 | ​ | $ | (98,638)
​ 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. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​
​ | ​ | March 31, | ​
(In thousands) |  | 2024 |  | 2023 | ​
Change in unrealized gain (loss) on securities: | ​ |  |  | ​ |  |  | ​
Change in net unrealized gain (loss) during the period | ​ | $ | 3,344 | ​ | $ | (2,302) | ​
Reclassification adjustment for net losses included in net loss on sale of securities and other assets | ​ |  | — | ​ |  | 1,447 | ​
Accretion of net unrealized loss on securities transferred to held-to-maturity | ​ | ​ | 718 | ​ | ​ | 757 | ​
Net change | ​ |  | 4,062 | ​ |  | (98) | ​
Tax expense | ​ |  | 1,212 | ​ |  | 2,664 | ​
Net change in unrealized gain (loss) on securities, net of reclassification adjustments and tax | ​ |  | 2,850 | ​ |  | (2,762) | ​
Change in pension and other postretirement obligations: | ​ |  |  | ​ |  |  | ​
Reclassification adjustment for expense included in other expense | ​ |  | (317) | ​ |  | (370) | ​
Change in the net actuarial gain | ​ |  | 520 | ​ |  | 221 | ​
Net change | ​ |  | 203 | ​ |  | (149) | ​
Tax expense (benefit) | ​ |  | 58 | ​ |  | (44) | ​
Net change in pension and other postretirement obligations | ​ |  | 145 | ​ |  | (105) | ​
Change in unrealized gain (loss) on derivatives: | ​ |  |  | ​ |  |  | ​
Change in net unrealized gain (loss) during the period | ​ |  | 2,145 | ​ |  | (2,111) | ​
Reclassification adjustment for expense included in interest expense | ​ |  | 2,435 | ​ |  | (313) | ​
Net change | ​ |  | 4,580 | ​ |  | (2,424) | ​
Tax expense (benefit) | ​ |  | 1,462 | ​ |  | (1,032) | ​
Net change in unrealized gain (loss) on derivatives, net of reclassification adjustments and tax | ​ |  | 3,118 | ​ |  | (1,392) | ​
Other comprehensive income (loss), net of tax | ​ | $ | 6,113 | ​ | $ | (4,259) | ​
​

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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://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//220/tableOfContent + Details
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