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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2018
Equity [Abstract] |
Schedule of Changes In Each Component of Accumulated Other Comprehensive Income | The activity in accumulated other comprehensive loss is presented in the tables below (in thousands). All amounts are shown net of tax, which is calculated using a combined federal and state income tax rate approximating 23% for the three and six months ended June 30, 2018 and 37% for the three and six months ended June 30, 2017.
| Accumulated Other Comprehensive Income (Loss)
|  | Unrealized |
|  | Gains (Losses) on |
| Defined Benefit | Securities |
| Pension Plans | Available-for-Sale | Total
Balance at December 31, 2017 | $ | (5,033 | ) | $ | (611 | ) | $ | (5,644 | )
Other comprehensive loss before reclassifications | — |  | (10,650 | ) | (10,650 | )
Amounts reclassified from other comprehensive loss | — |  | — |  | — |
| — |  | (10,650 | ) | (10,650 | )
Adoption of new accounting pronouncement | — |  | (2,657 | ) | (2,657 | )
Balance at June 30, 2018 | $ | (5,033 | ) | $ | (13,918 | ) | $ | (18,951 | )
Balance at December 31, 2016 | $ | (4,660 | ) | $ | (2,352 | ) | $ | (7,012 | )
Other comprehensive income before reclassifications | — |  | 5,625 |  | 5,625 |
Amounts reclassified from other comprehensive loss | — |  | (2,698 | ) | (2,698 | )
| — |  | 2,927 |  | 2,927 |
Balance at June 30, 2017 | $ | (4,660 | ) | $ | 575 |  | $ | (4,085 | )
Schedule of Amounts Reclassified Out Of Accumulated Other Comprehensive Income |
| Amount reclassified from Other Comprehensive Loss |
| Three months ended | Six months ended | Affected line item
| June 30, | June 30, | in the Statements
| 2018 | 2017 | 2018 | 2017 | of Income
Securities available-for-sale: |  |  |  |  |
Net unrealized securities gains (losses) reclassified into earnings | $ | — |  | $ | — |  | $ | — |  | $ | (4,276 | ) | Security gains (losses)
Related income tax expense | — |  | — |  | — |  | 1,578 |  | Income tax expense
Net effect on accumulated other comprehensive loss | $ | — |  | $ | — |  | $ | — |  | $ | (2,698 | ) |

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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