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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2018
Equity [Abstract] |
Summary of Changes in Accumulated Other Comprehensive Loss by Component | Changes in accumulated other comprehensive loss by component for the six months ended June 30, 2018 and 2017 consisted of the following (in thousands):
|  | Minimum Pension Liability |  |  | Other-Than- Temporary Impairment of Investment |  |  | Total |
Balance, December 31, 2017 |  | $ | (20,149 | ) |  | $ | (6,543 | ) |  | $ | (26,692 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | (9 | ) |  |  | 166 |  |  |  | 157 |
Income tax benefit |  |  | 5 |  |  |  | — |  |  |  | 5 |
Net other comprehensive income (loss) |  |  | (4 | ) |  |  | 166 |  |  |  | 162 |
Balance, June 30, 2018 |  | $ | (20,153 | ) |  | $ | (6,377 | ) |  | $ | (26,530 | )
|  | Minimum Pension Liability |  |  | Other-Than- Temporary Impairment of Investment |  |  | Total |
Balance, December 31, 2016 |  | $ | (22,268 | ) |  | $ | — |  |  | $ | (22,268 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | 45 |  |  |  | — |  |  |  | 45 |
Income tax benefit |  |  | — |  |  |  | — |  |  |  | — |
Net other comprehensive income |  |  | 45 |  |  |  | — |  |  |  | 45 |
Balance, June 30, 2017 |  | $ | (22,223 | ) |  | $ | — |  |  | $ | (22,223 | )

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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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