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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 6 Months Ended
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Jun. 30, 2025
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, 2025 | ​ | $ | (43,767) | ​ | $ | (7,499) | ​ | $ | 6,248 | ​ | $ | (45,018)
Other comprehensive income (loss) before reclassifications | ​ |  | 9,056 | ​ |  | 3,437 | ​ |  | (8,992) | ​ |  | 3,501
Amounts reclassified from accumulated other comprehensive income | ​ |  | 925 | ​ |  | 28 | ​ |  | 2,627 | ​ |  | 3,580
Net other comprehensive income (loss) during the period | ​ |  | 9,981 | ​ |  | 3,465 | ​ |  | (6,365) | ​ |  | 7,081
Balance as of June 30, 2025 | ​ | $ | (33,786) | ​ | $ | (4,034) | ​ | $ | (117) | ​ | $ | (37,937)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance as of January 1, 2024 | ​ | $ | (90,242) | ​ | $ | (6,430) | ​ | $ | 5,093 | ​ | $ | (91,579)
Other comprehensive income (loss) before reclassifications | ​ |  | 4,761 | ​ |  | 703 | ​ |  | (659) | ​ |  | 4,805
Amounts reclassified from accumulated other comprehensive income (loss) | ​ |  | 1,048 | ​ |  | (433) | ​ |  | 3,379 | ​ |  | 3,994
Net other comprehensive income during the period | ​ |  | 5,809 | ​ |  | 270 | ​ |  | 2,720 | ​ |  | 8,799
Balance as of June 30, 2024 | ​ | $ | (84,433) | ​ | $ | (6,160) | ​ | $ | 7,813 | ​ | $ | (82,780)
​ 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 | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
(In thousands) |  | 2025 |  | 2024 | ​ | 2025 |  | 2024
Change in unrealized gain (loss) on securities: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Change in net unrealized gain during the period | ​ | $ | 3,306 | ​ | $ | 3,775 | ​ | $ | 11,266 | ​ | $ | 7,119
Reclassification adjustment for net gain included in net gain on securities and other assets | ​ |  | (149) | ​ |  | — | ​ |  | (149) | ​ |  | —
Accretion of net unrealized loss on securities transferred to held-to-maturity | ​ | ​ | 759 | ​ |  | 818 | ​ | ​ | 1,483 | ​ | ​ | 1,536
Credit loss expense | ​ | ​ | 907 | ​ | ​ | — | ​ | ​ | 1,800 | ​ | ​ | —
Net change | ​ |  | 4,823 | ​ |  | 4,593 | ​ |  | 14,400 | ​ |  | 8,655
Tax expense | ​ |  | 1,480 | ​ |  | 1,634 | ​ |  | 4,419 | ​ |  | 2,846
Net change in unrealized gain on securities, net of reclassification adjustments and tax | ​ |  | 3,343 | ​ |  | 2,959 | ​ |  | 9,981 | ​ |  | 5,809
Change in pension and other postretirement obligations: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Reclassification adjustment for benefit (expense) included in other expense | ​ |  | 128 | ​ |  | (318) | ​ |  | 41 | ​ |  | (635)
Change in the net actuarial gain | ​ |  | 104 | ​ |  | 520 | ​ |  | 4,958 | ​ |  | 1,040
Net change | ​ |  | 232 | ​ | ​ | 202 | ​ |  | 4,999 | ​ |  | 405
Tax expense | ​ |  | 71 | ​ |  | 77 | ​ |  | 1,534 | ​ |  | 135
Net change in pension and other postretirement obligations | ​ |  | 161 | ​ |  | 125 | ​ |  | 3,465 | ​ |  | 270
Change in unrealized gain (loss) on derivatives: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Change in net unrealized loss during the period | ​ |  | (5,407) | ​ |  | (3,128) | ​ |  | (12,974) | ​ |  | (983)
Reclassification adjustment for expense included in interest expense | ​ |  | 1,950 | ​ |  | 2,520 | ​ |  | 3,790 | ​ |  | 4,955
Net change | ​ |  | (3,457) | ​ |  | (608) | ​ |  | (9,184) | ​ |  | 3,972
Tax (benefit) expense | ​ |  | (1,061) | ​ |  | (210) | ​ |  | (2,819) | ​ |  | 1,252
Net change in unrealized (loss) gain on derivatives, net of reclassification adjustments and tax | ​ |  | (2,396) | ​ |  | (398) | ​ |  | (6,365) | ​ |  | 2,720
Other comprehensive income, net of tax | ​ | $ | 1,108 | ​ | $ | 2,686 | ​ | $ | 7,081 | ​ | $ | 8,799
​

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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/1943274/2147477250/944-220-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/1943274/2147478524/942-220-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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