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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2018
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 months ended March 31, 2018 and 2017.
|  | Unrealized |  |  |  |
|  | gains and |  | 2018
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | 2,258 |  |  | $ | (16,962 | ) |  | $ | (14,704 | )
Change in other comprehensive income (loss) before reclassification |  | (7,699 | ) |  | — |  |  | (7,699 | )
Amounts reclassified from accumulated other comprehensive income |  | — |  |  | 281 |  |  | 281 |
ASU 2018-02 adjustment |  | 498 |  |  | (2,864 | ) |  | (2,366 | )
Net Current period other comprehensive other income |  | (7,201 | ) |  | (2,583 | ) |  | (9,784 | )
Ending balance, March 31, |  | $ | (4,943 | ) |  | $ | (19,545 | ) |  | $ | (24,488 | )
|  | 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 |  | 3,189 |  |  | — |  |  | 3,189 |
Amounts reclassified from accumulated other comprehensive income |  | (1 | ) |  | 183 |  |  | 182 |
Net Current period other comprehensive other income |  | 3,188 |  |  | 183 |  |  | 3,371 |
Ending balance, March 31, |  | $ | 2,111 |  |  | $ | (12,904 | ) |  | $ | (10,793 | )
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 |  | 3/31/2017
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | (3,018 | ) |  | $ | 3,344 |  |  | $ | 326 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 1,941 |  |  | (156 | ) |  | 1,785 |
Total unrealized loss on securities available-for-sale |  | $ | (1,077 | ) |  | $ | 3,188 |  |  | $ | 2,111 |
Unrealized loss on retirement plans |  | (13,087 | ) |  | 183 |  |  | (12,904 | )
TOTAL |  | $ | (14,164 | ) |  | $ | 3,371 |  |  | $ | (10,793 | )
Accumulated Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent |
|  | Three Months Ended March 31, 2018 |  |
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 |  | $ | — |  |  | Net securities gains (losses)
on available-for-sale |  | — |  |  | Income tax expense
securities |  | $ | — |  |  | Net of tax
Amortization of |  | $ | (362 | ) |  | (a) Salary and benefits
retirement plan items |  | 81 |  |  | Income tax expense
|  | $ | (281 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (281 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Three Months Ended March 31, 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 |  | $ | 2 |  |  | Net securities gains (losses)
on available-for-sale |  | (1 | ) |  | Income tax expense
securities |  | $ | 1 |  |  | Net of tax
Amortization of |  | $ | (301 | ) |  | (a) Salary and benefits
retirement plan items |  | 118 |  |  | Income tax expense
|  | $ | (183 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (182 | ) |  | 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) 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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