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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2018
Equity [Abstract] |
Summary of Changes in Accumulated Other Comprehensive Income (Loss) | The changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2018 are as follows:
| Gains and Losses on Cash Flow Hedges |  | Defined Benefit Pension Plan |  | Total Accumulated Other Comprehensive Income (Loss)
| (In thousands) |  |  |  |
Balance at December 31, 2017 | $ | 1,750 |  | $ | (443) |  | $ | 1,307
Other comprehensive income (loss) before reclassifications (1) | 4,140 |  | — |  | 4,140
Amounts reclassified out of accumulated other comprehensive income (loss) (2) | 33 |  | — |  | 33
Net current-period other comprehensive income (loss) | 4,173 |  | — |  | 4,173
Balance at September 30, 2018 | $ | 5,923 |  | $ | (443) |  | $ | 5,480
(1) Net of tax expense of $1,551. (2) Net of tax expense of $12.

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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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