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OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
OTHER COMPREHENSIVE INCOME (LOSS) |
Schedule of Accumulated Other Comprehensive Income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | gains and | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | (Losses) on available- | ​ | 2022
​ | ​ | for-sale | ​ | Retirement | ​ | ​ | ​
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, | ​ | $ | 15,674 | ​ | $ | (18,100) | ​ | $ | (2,426)
Change in other comprehensive income (loss) before reclassification | ​ |  | (144,568) | ​ |  | 6,078 | ​ |  | (138,490)
Amounts reclassified from accumulated other comprehensive income | ​ |  | (2) | ​ |  | 944 | ​ |  | 942
Net current period other comprehensive income (loss) | ​ |  | (144,570) | ​ |  | 7,022 | ​ |  | (137,548)
Ending balance, December 31, | ​ | $ | (128,896) | ​ | $ | (11,078) | ​ | $ | (139,974)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | gains and | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | (Losses) on available- | ​ | 2021
​ | ​ | for-sale | ​ | Retirement | ​ |  | ​
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, | ​ | $ | 34,162 | ​ | $ | (24,398) | ​ | $ | 9,764
Change in other comprehensive income (loss) before reclassification | ​ |  | (18,403) | ​ |  | 4,744 | ​ |  | (13,659)
Amounts reclassified from accumulated other comprehensive income | ​ |  | (85) | ​ |  | 1,554 | ​ |  | 1,469
Net current period other comprehensive income (loss) | ​ |  | (18,488) | ​ |  | 6,298 | ​ |  | (12,190)
Ending balance, December 31, | ​ | $ | 15,674 | ​ | $ | (18,100) | ​ | $ | (2,426)
​
Schedule Of Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | Current Period | ​ | Balance at
(Dollar amounts in thousands) |  | 1/1/2022 |  | Change |  | 12/31/2022
Unrealized gains (losses) on securities available-for-sale without other than temporary impairment | ​ | $ | 13,155 | ​ | $ | (144,290) | ​ | $ | (131,135)
Unrealized gains (losses) on securities available-for-sale with other than temporary impairment | ​ |  | 2,519 | ​ |  | (280) | ​ |  | 2,239
Total unrealized gain (loss) on securities available-for-sale | ​ | $ | 15,674 | ​ | $ | (144,570) | ​ | $ | (128,896)
Unrealized gain (loss) on retirement plans | ​ |  | (18,100) | ​ |  | 7,022 | ​ |  | (11,078)
TOTAL | ​ | $ | (2,426) | ​ | $ | (137,548) | ​ | $ | (139,974)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | Current Period | ​ | Balance at
(Dollar amounts in thousands) |  | 1/1/2021 |  | Change |  | 12/31/2021
Unrealized gains (losses) on securities available-for-sale without other than temporary impairment | ​ | $ | 31,810 | ​ | $ | (18,655) | ​ | $ | 13,155
Unrealized gains (losses) on securities available-for-sale with other than temporary impairment | ​ |  | 2,352 | ​ |  | 167 | ​ |  | 2,519
Total unrealized income (loss) on securities available-for-sale | ​ | $ | 34,162 | ​ | $ | (18,488) | ​ | $ | 15,674
Unrealized gain (loss) on retirement plans | ​ |  | (24,398) | ​ |  | 6,298 | ​ |  | (18,100)
TOTAL | ​ | $ | 9,764 | ​ | $ | (12,190) | ​ | $ | (2,426)
​
Reclassification out of Accumulated Other Comprehensive Income |
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31, 2022 |  | ​ |
Details about accumulated | ​ | Amount reclassified from | ​ | ​ | Affected line item in
other comprehensive | ​ | accumulated other | ​ | ​ | the statement where
income components |  | comprehensive income |  | ​ | net income is presented
​ | ​ | (in thousands) | ​ | ​ | ​
Unrealized gains and losses | ​ | $ | 3 |  | ​ | Net securities gains (losses)
on available-for-sale | ​ |  | (1) |  | ​ | Income tax expense
securities | ​ | $ | 2 |  | ​ | Net of tax
​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of | ​ | $ | (1,259) | (a) | ​ | Salary and benefits
retirement plan items | ​ |  | 315 |  | ​ | Income tax expense
​ | ​ | $ | (944) |  | ​ | Net of tax
Total reclassifications for the period | ​ | $ | (942) |  | ​ | Net of tax
(a) | Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).
​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at December 31, 2021 | ​ | ​
Details about accumulated | ​ | Amount reclassified from | ​ | Affected line item in
other comprehensive | ​ | accumulated other | ​ | the statement where
income components | ​ | comprehensive income |  | net income is presented
​ | ​ | (in thousands) |  | ​
Unrealized gains and losses | ​ | $ | 114 |  | Net securities gains (losses)
on available-for-sale | ​ |  | (29) |  | Income tax expense
securities | ​ | $ | 85 |  | Net of tax
​ | ​ | ​ | ​ | ​ | ​
Amortization of | ​ | $ | (2,072) | (a) | Salary and benefits
retirement plan items | ​ |  | 518 |  | Income tax expense
​ | ​ | $ | (1,554) |  | Net of tax
Total reclassifications for the period | ​ | $ | (1,469) |  | Net of tax
(a) | Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).
​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at December 31, 2020 | ​ | ​
Details about accumulated | ​ | Amount reclassified from | ​ | Affected line item in
other comprehensive | ​ | accumulated other | ​ | the statement where
income components |  | comprehensive income |  | net income is presented
​ | ​ | (in thousands) | ​ | ​
Unrealized gains and losses | ​ | $ | 233 |  | Net securities gains (losses)
on available-for-sale | ​ |  | (58) |  | Income tax expense
securities | ​ | $ | 175 |  | Net of tax
​ | ​ | ​ | ​ | ​ | ​
Amortization of | ​ | $ | (1,967) | (a) | ​
retirement plan items | ​ |  | 492 |  | Income tax expense
​ | ​ | $ | (1,475) |  | Net of tax
Total reclassifications for the period | ​ | $ | (1,300) |  | Net of tax
(a) | Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

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