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Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income | The following tables summarize the changes, net of tax, within each classification of accumulated other comprehensive income/(loss) for the three and six months ended June 30, 2021 and 2020.
|  | Unrealized |  |  |  |
|  | gains and |  | 2021
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, April 1, |  | $ | 23,094 |  |  | $ | (23,926) |  |  | $ | (832) |
Change in other comprehensive income (loss) before reclassification |  | 1,965 |  |  | — |  |  | 1,965 |
Amounts reclassified from accumulated other comprehensive income |  | (193) |  |  | 472 |  |  | 279 |
Net current period other comprehensive income (loss) |  | 1,772 |  |  | 472 |  |  | 2,244 |
Ending balance, June 30, |  | $ | 24,866 |  |  | $ | (23,454) |  |  | $ | 1,412 |
|  | Unrealized |  |  |  |
|  | gains and |  | 2021
|  | (Losses) on available- 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 |  | (9,217) |  |  | — |  |  | (9,217) |
Amounts reclassified from accumulated other comprehensive income |  | (79) |  |  | 944 |  |  | 865 |
Net current period other comprehensive income (loss) |  | (9,296) |  |  | 944 |  |  | (8,352) |
Ending balance, June 30, |  | $ | 24,866 |  |  | $ | (23,454) |  |  | $ | 1,412 |
|  | Unrealized |  |  |  |
|  | gains and |  | 2020
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, April 1, |  | $ | 27,991 |  |  | $ | (21,990) |  |  | $ | 6,001 |
Change in other comprehensive income (loss) before reclassification |  | 3,153 |  |  | — |  |  | 3,153 |
Amounts reclassified from accumulated other comprehensive income |  | (23) |  |  | 384 |  |  | 361 |
Net current period other comprehensive income (loss) |  | 3,130 |  |  | 384 |  |  | 3,514 |
Ending balance, June 30, |  | $ | 31,121 |  |  | $ | (21,606) |  |  | $ | 9,515 |
Schedule Of Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment |
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2021 |  | Change |  | 6/30/2021
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |
without other than temporary impairment |  | $ | 31,810 |  |  | $ | (9,393) |  |  | $ | 22,417 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |
with other than temporary impairment |  | 2,352 |  |  | 97 |  |  | 2,449 |
Total unrealized gain (loss) on securities available-for-sale |  | $ | 34,162 |  |  | $ | (9,296) |  |  | $ | 24,866 |
Unrealized loss on retirement plans |  | (24,398) |  |  | 944 |  |  | (23,454) |
TOTAL |  | $ | 9,764 |  |  | $ | (8,352) |  |  | $ | 1,412 |
|  | Balance at |  | Current Period |  |  |  | Balance at
(Dollar amounts in thousands) |  | 4/1/2020 |  | Change |  |  |  | 6/30/2020
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 25,566 |  |  | $ | 3,347 |  |  |  |  | $ | 28,913 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,425 |  |  | (217) |  |  |  |  | 2,208 |
Total unrealized gain (loss) on securities available-for-sale |  | $ | 27,991 |  |  | $ | 3,130 |  |  |  |  | $ | 31,121 |
Unrealized loss on retirement plans |  | (21,990) |  |  | 384 |  |  |  |  | (21,606) |
TOTAL |  | $ | 6,001 |  |  | $ | 3,514 |  |  |  |  | $ | 9,515 |
|  | Balance at |  | Current Period |  |  |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2020 |  | Change |  |  |  | 6/30/2020
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 12,178 |  |  | $ | 16,735 |  |  |  |  | $ | 28,913 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,715 |  |  | (507) |  |  |  |  | 2,208 |
Total unrealized income (loss) on securities available-for-sale |  | $ | 14,893 |  |  | $ | 16,228 |  |  |  |  | $ | 31,121 |
Unrealized gain (loss) on retirement plans |  | (22,394) |  |  | 788 |  |  |  |  | (21,606) |
TOTAL |  | $ | (7,501) |  |  | $ | 17,016 |  |  |  |  | $ | 9,515 |
Accumulated Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent |
|  | Three Months Ended June 30, 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 |  | $ | 258 |  |  | Net securities gains (losses)
on available-for-sale |  | (65) |  |  | Income tax expense
securities |  | $ | 193 |  |  | Net of tax
Amortization of |  | $ | (518) |  |  | (a) Salary and benefits
retirement plan items |  | 46 |  |  | Income tax expense
|  | $ | (472) |  |  | Net of tax
Total reclassifications for the period |  | $ | (279) |  |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Six Months Ended June 30, 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 |  | $ | 106 |  |  | Net securities gains (losses)
on available-for-sale |  | (27) |  |  | Income tax expense
securities |  | $ | 79 |  |  | Net of tax
Amortization of |  | $ | (1,036) |  |  | (a) Salary and benefits
retirement plan items |  | 92 |  |  | Income tax expense
|  | $ | (944) |  |  | Net of tax
Total reclassifications for the period |  | $ | (865) |  |  | Net of tax
|  | Three Months Ended June 30, 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 |  | $ | 31 |  |  | Net securities gains (losses)
on available-for-sale |  | (8) |  |  | Income tax expense
securities |  | $ | 23 |  |  | Net of tax
Amortization of |  | $ | (492) |  |  | (a) Salary and benefits
retirement plan items |  | 108 |  |  | Income tax expense
|  | $ | (384) |  |  | Net of tax
Total reclassifications for the period |  | $ | (361) |  |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).

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