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Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2017
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 nine months ended September 30, 2017 and 2016.
|  | Unrealized |  |  |  |
|  | gains and |  | 2017
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, July 1, |  | $ | 7,156 |  |  | $ | (12,720 | ) |  | $ | (5,564 | )
Change in other comprehensive income (loss) before reclassification |  | (33 | ) |  | — |  |  | (33 | )
Amounts reclassified from accumulated other comprehensive income |  | (18 | ) |  | 184 |  |  | 166 |
Net Current period other comprehensive other income |  | (51 | ) |  | 184 |  |  | 133 |
Ending balance, September 30, |  | $ | 7,105 |  |  | $ | (12,536 | ) |  | $ | (5,431 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2017
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | (1,077 | ) |  | $ | (13,087 | ) |  | $ | (14,164 | )
Change in other comprehensive income (loss) before reclassification |  | 8,211 |  |  | — |  |  | 8,211 |
Amounts reclassified from accumulated other comprehensive income |  | (29 | ) |  | 551 |  |  | 522 |
Net Current period other comprehensive other income |  | 8,182 |  |  | 551 |  |  | 8,733 |
Ending balance, September 30, |  | $ | 7,105 |  |  | $ | (12,536 | ) |  | $ | (5,431 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2016
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, July 1, |  | $ | 14,353 |  |  | $ | (17,846 | ) |  | $ | (3,493 | )
Change in other comprehensive income (loss) before reclassification |  | 786 |  |  | — |  |  | 786 |
Amounts reclassified from accumulated other comprehensive income |  | (9 | ) |  | 304 |  |  | 295 |
Net Current period other comprehensive other income |  | 777 |  |  | 304 |  |  | 1,081 |
Ending balance, September 30, |  | $ | 15,130 |  |  | $ | (17,542 | ) |  | $ | (2,412 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2016
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | 9,053 |  |  | $ | (18,454 | ) |  | $ | (9,401 | )
Change in other comprehensive income (loss) before reclassification |  | 6,094 |  |  | — |  |  | 6,094 |
Amounts reclassified from accumulated other comprehensive income |  | (17 | ) |  | 912 |  |  | 895 |
Net Current period other comprehensive other income |  | 6,077 |  |  | 912 |  |  | 6,989 |
Ending balance, September 30, |  | $ | 15,130 |  |  | $ | (17,542 | ) |  | $ | (2,412 | )
Schedule Of Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment |
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2017 |  | Change |  | 9/30/2017
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |
without other than temporary impairment |  | $ | (3,018 | ) |  | $ | 7,154 |  |  | $ | 4,136 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 1,941 |  |  | 1,028 |  |  | 2,969 |
Total unrealized loss on securities available-for-sale |  | $ | (1,077 | ) |  | $ | 8,182 |  |  | $ | 7,105 |
Unrealized loss on retirement plans |  | (13,087 | ) |  | 551 |  |  | (12,536 | )
TOTAL |  | $ | (14,164 | ) |  | $ | 8,733 |  |  | $ | (5,431 | )
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 7/1/2016 |  | Change |  | 9/30/2016
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 13,120 |  |  | $ | 663 |  |  | $ | 13,783 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 1,233 |  |  | 114 |  |  | 1,347 |
Total unrealized loss on securities available-for-sale |  | $ | 14,353 |  |  | $ | 777 |  |  | $ | 15,130 |
Unrealized loss on retirement plans |  | (17,846 | ) |  | 304 |  |  | (17,542 | )
TOTAL |  | $ | (3,493 | ) |  | $ | 1,081 |  |  | $ | (2,412 | )
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2016 |  | Change |  | 9/30/2016
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 6,083 |  |  | $ | 7,700 |  |  | $ | 13,783 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,970 |  |  | (1,623 | ) |  | 1,347 |
Total unrealized loss on securities available-for-sale |  | $ | 9,053 |  |  | $ | 6,077 |  |  | $ | 15,130 |
Unrealized loss on retirement plans |  | (18,454 | ) |  | 912 |  |  | (17,542 | )
TOTAL |  | $ | (9,401 | ) |  | $ | 6,989 |  |  | $ | (2,412 | )
Accumulated Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent |
|  | Three Months Ended September 30, 2017 |  |
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 |  | $ | 27 |  |  | Net securities gains (losses)
on available-for-sale |  | (9 | ) |  | Income tax expense
securities |  | $ | 18 |  |  | Net of tax
Amortization of |  | $ | (301 | ) |  | (a) Salary and benefits
retirement plan items |  | 117 |  |  | Income tax expense
|  | $ | (184 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (166 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Nine Months Ended September 30, 2017 |  |
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 |  | $ | 44 |  |  | Net securities gains (losses)
on available-for-sale |  | (15 | ) |  | Income tax expense
securities |  | $ | 29 |  |  | Net of tax
Amortization of |  | $ | (903 | ) |  | (a) Salary and benefits
retirement plan items |  | 352 |  |  | Income tax expense
|  | $ | (551 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (522 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Three Months Ended September 30, 2016 |  |
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 |  | $ | 13 |  |  | Net securities gains (losses)
on available-for-sale |  | (4 | ) |  | Income tax expense
securities |  | $ | 9 |  |  | Net of tax
Amortization of |  | $ | (507 | ) |  | (a) Salary and benefits
retirement plan items |  | 203 |  |  | Income tax expense
|  | $ | (304 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (295 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss) portion attributable to parent. + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss) with and without other than temporary impairment. + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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