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Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2020
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, 2020 and 2019.
|  | 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 |
|  | Unrealized |  |  |  |
|  | gains and |  | 2020 |  |
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | 14,893 |  |  | $ | (22,394) |  |  | $ | (7,501) |
Change in other comprehensive income (loss) before reclassification |  | 16,397 |  |  | — |  |  | 16,397 |
Amounts reclassified from accumulated other comprehensive income |  | (169) |  |  | 788 |  |  | 619 |
Net current period other comprehensive loss |  | — |  |  | — |  |  | — |
Net current period other comprehensive income (loss) |  | 16,228 |  |  | 788 |  |  | 17,016 |
Ending balance, June 30, |  | $ | 31,121 |  |  | $ | (21,606) |  |  | $ | 9,515 |
|  | Unrealized |  |  |  |
|  | gains and |  | 2019 |  |
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, April 1, |  | $ | 4,119 |  |  | $ | (17,046) |  |  | $ | (12,927) |
Change in other comprehensive income (loss) before reclassification |  | 8,353 |  |  | — |  |  | 8,353 |
Amounts reclassified from accumulated other comprehensive income |  | (12) |  |  | 304 |  |  | 292 |
Net current period other comprehensive income (loss) |  | 8,341 |  |  | 304 |  |  | 8,645 |
Ending balance, June 30, |  | $ | 12,460 |  |  | $ | (16,742) |  |  | $ | (4,282) |
Schedule Of Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment |
|  | 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 gain (loss) on securities available-for-sale |  | $ | 14,893 |  |  | $ | 16,228 |  |  | $ | 31,121 |
Unrealized loss on retirement plans |  | (22,394) |  |  | 788 |  |  | (21,606) |
TOTAL |  | $ | (7,501) |  |  | $ | 17,016 |  |  | $ | 9,515 |
|  | Balance at |  | Current Period |  |  |  | Balance at
(Dollar amounts in thousands) |  | 4/1/2019 |  | Change |  |  |  | 6/30/2019
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 1,720 |  |  | $ | 8,278 |  |  |  |  | $ | 9,998 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,399 |  |  | 63 |  |  |  |  | 2,462 |
Total unrealized gain (loss) on securities available-for-sale |  | $ | 4,119 |  |  | $ | 8,341 |  |  |  |  | $ | 12,460 |
Unrealized loss on retirement plans |  | (17,046) |  |  | 304 |  |  |  |  | (16,742) |
TOTAL |  | $ | (12,927) |  |  | $ | 8,645 |  |  |  |  | $ | (4,282) |
|  | Balance at |  | Current Period |  |  |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2019 |  | Change |  |  |  | 6/30/2019
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | (8,446) |  |  | $ | 18,444 |  |  |  |  | $ | 9,998 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,341 |  |  | 121 |  |  |  |  | 2,462 |
Total unrealized income (loss) on securities available-for-sale |  | $ | (6,105) |  |  | $ | 18,565 |  |  |  |  | $ | 12,460 |
Unrealized gain (loss) on retirement plans |  | (17,349) |  |  | 607 |  |  |  |  | (16,742) |
TOTAL |  | $ | (23,454) |  |  | $ | 19,172 |  |  |  |  | $ | (4,282) |
Accumulated Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent |
|  | 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).
|  | Six 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 |  | $ | 225 |  |  | Net securities gains (losses)
on available-for-sale |  | (56) |  |  | Income tax expense
securities |  | $ | 169 |  |  | Net of tax
Amortization of |  | $ | (984) |  |  | (a) Salary and benefits
retirement plan items |  | 196 |  |  | Income tax expense
|  | $ | (788) |  |  | Net of tax
Total reclassifications for the period |  | $ | (619) |  |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Three Months Ended June 30, 2019 |  |
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 |  | $ | 16 |  |  | Net securities gains (losses)
on available-for-sale |  | (4) |  |  | Income tax expense
securities |  | $ | 12 |  |  | Net of tax
Amortization of |  | $ | (390) |  |  | (a) Salary and benefits
retirement plan items |  | 86 |  |  | Income tax expense
|  | $ | (304) |  |  | Net of tax
Total reclassifications for the period |  | $ | (292) |  |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).

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