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Other Comprehensive Income (Loss) | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Other Comprehensive Income (Loss) | Other Comprehensive Income (Loss) (In Thousands) Changes in the components of other comprehensive income (loss), net of tax, were as follows for the periods presented:
| Pre-Tax |  | Tax Expense (Benefit) |  | Net of Tax
Three months ended March 31, 2018 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding losses on securities | $ | (10,609 | ) |  | $ | (2,700 | ) |  | $ | (7,909 | )
Total securities available for sale | (10,609 | ) |  | (2,700 | ) |  | (7,909 | )
Derivative instruments: |  |  |  |  |
Unrealized holding gains on derivative instruments | 1,151 |  |  | 293 |  |  | 858 |
Total derivative instruments | 1,151 |  |  | 293 |  |  | 858 |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 87 |  |  | 21 |  |  | 66 |
Total defined benefit pension and post-retirement benefit plans | 87 |  |  | 21 |  |  | 66 |
Total other comprehensive loss | $ | (9,371 | ) |  | $ | (2,386 | ) |  | $ | (6,985 | )
Three months ended March 31, 2017 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding gains on securities | $ | 4,739 |  |  | $ | 1,832 |  |  | $ | 2,907 |
Amortization of unrealized holding gains on securities transferred to the held to maturity category | (246 | ) |  | (95 | ) |  | (151 | )
Total securities available for sale | 4,493 |  |  | 1,737 |  |  | 2,756 |
Derivative instruments: |  |  |  |  |
Unrealized holding gains on derivative instruments | 276 |  |  | 107 |  |  | 169 |
Total derivative instruments | 276 |  |  | 107 |  |  | 169 |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 113 |  |  | 44 |  |  | 69 |
Total defined benefit pension and post-retirement benefit plans | 113 |  |  | 44 |  |  | 69 |
Total other comprehensive income | $ | 4,882 |  |  | $ | 1,888 |  |  | $ | 2,994 |
The accumulated balances for each component of other comprehensive income (loss), net of tax, were as follows as of the dates presented:
| March 31, 2018 |  | December 31, 2017
Unrealized gains on securities | $ | 1,460 |  |  | $ | 7,363 |
Non-credit related portion of other-than-temporary impairment on securities | (11,319 | ) |  | (9,313 | )
Unrealized losses on derivative instruments | (137 | ) |  | (995 | )
Unrecognized losses on defined benefit pension and post-retirement benefit plans obligations | (7,500 | ) |  | (7,566 | )
Total accumulated other comprehensive loss | $ | (17,496 | ) |  | $ | (10,511 | )

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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- References No definition available. + Details
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