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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2018
Stockholders' Equity Note [Abstract] |
Schedule of the change in the components of the accumulated other comprehensive loss |
|  | Nine months ended September 30, 2018 |
|  |  |  |  | Unrecognized Net |  |  | Accumulated |
|  | Unrealized |  |  | Pension and |  |  | Other |
|  | Gain (Loss) |  |  | Postretirement |  |  | Comprehensive |
(in thousands) |  | on Securities (1) |  |  | Costs (2) |  |  | (Loss) Income |
Balance at beginning of period |  | $ | (2,500 | ) |  | $ | (3,162 | ) |  | $ | (5,662 | )
Other comprehensive (loss) income, before reclassifications |  |  | (3,915 | ) |  |  | 164 |  |  |  | (3,751 | )
Amounts reclassified from accumulated other comprehensive (loss) income |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Current period other comprehensive (loss) income, before tax |  |  | (3,915 | ) |  |  | 164 |  |  |  | (3,751 | )
Income tax benefit (expense) |  |  | 822 |  |  |  | (35 | ) |  |  | 787 |
Current period other comprehensive (loss) income, net of tax |  |  | (3,093 | ) |  |  | 129 |  |  |  | (2,964 | )
Balance at end of period |  | $ | (5,593 | ) |  | $ | (3,033 | ) |  | $ | (8,626 | )
|  | Nine months ended September 30, 2017 |
|  |  |  |  | Unrecognized Net |  |  | Accumulated |
|  | Unrealized |  |  | Pension and |  |  | Other |
|  | Gain (Loss) |  |  | Postretirement |  |  | Comprehensive |
(in thousands) |  | on Securities (1) |  |  | Costs (2) |  |  | Loss |
Balance at beginning of period |  | $ | (1,936 | ) |  | $ | (1,865 | ) |  | $ | (3,801 | )
Other comprehensive income, before reclassifications |  |  | 1,588 |  |  |  | 67 |  |  |  | 1,655 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Current period other comprehensive income, before tax |  |  | 1,588 |  |  |  | 67 |  |  |  | 1,655 |
Income tax expense |  |  | (604 | ) |  |  | (25 | ) |  |  | (629 | )
Current period other comprehensive income, net of tax |  |  | 984 |  |  |  | 42 |  |  |  | 1,026 |
Balance at end of period |  | $ | (952 | ) |  | $ | (1,823 | ) |  | $ | (2,775 | )
(1) The pre-tax amounts reclassified from accumulated other comprehensive loss are included in gain on sale of investment securities in the consolidated statements of income. (2) The pre-tax amounts reclassified from accumulated other comprehensive loss are included in the computation of net periodic pension cost.

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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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Period Type: | duration

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- References No definition available. + Details
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