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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 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 six months ended June 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) | 3,664 |  |  | — |  |  | 3,664 |
Amounts reclassified out of accumulated other comprehensive income (loss) (2) | 121 |  |  | — |  |  | 121 |
Net current-period other comprehensive income (loss) | 3,785 |  |  | — |  |  | 3,785 |
Balance at June 30, 2018 | $ | 5,535 |  |  | $ | (443 | ) |  | $ | 5,092 |
(1) | Net of tax expense of $1,373.
(2) | Net of tax expense of $45.

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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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