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Accumulated Other Comprehensive Income | 6 Months Ended
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Jun. 30, 2018
Accumulated Other Comprehensive Income [Abstract] |
Accumulated Other Comprehensive Income | Note 10. Accumulated Other Comprehensive Income Changes in Accumulated Other Comprehensive Income by Component (in thousands)
|  | Three Months Ended June 30, 2018 |
|  | Foreign Currency Translation Adjustments |  |  | Unrecognized Postretirement Benefit Costs (Credit) |  |  | Total |
Balance at March 31, 2018 |  | $ | (2,006 | ) |  | $ | 111 |  |  | $ | (1,895 | )
Other comprehensive income before reclassifications |  |  | (5,935 | ) |  |  | 7 |  |  |  | (5,928 | )
Amounts reclassified from accumulated other comprehensive income |  |  | — |  |  |  | (7 | ) |  |  | (7 | )
Other comprehensive income, net |  |  | (5,935 | ) |  |  | — |  |  |  | (5,935 | )
Balance at June 30, 2018 |  | $ | (7,941 | ) |  | $ | 111 |  |  | $ | (7,830 | )
|  | Six Months Ended June 30, 2018 |
|  | Foreign Currency Translation Adjustments |  |  | Unrecognized Postretirement Benefit Costs (Credit) |  |  | Total |
Balance at December 31, 2017 |  | $ | (4,225 | ) |  | $ | 116 |  |  | $ | (4,109 | )
Other comprehensive income before reclassifications |  |  | (3,716 | ) |  |  | 7 |  |  |  | (3,709 | )
Amounts reclassified from accumulated other comprehensive income |  |  | — |  |  |  | (12 | ) |  |  | (12 | )
Other comprehensive income, net |  |  | (3,716 | ) |  |  | (5 | ) |  |  | (3,721 | )
Balance at June 30, 2018 |  | $ | (7,941 | ) |  | $ | 111 |  |  | $ | (7,830 | )
Reclassifications Out of Accumulated Other Comprehensive Income (in thousands)
Details About Accumulated Other Comprehensive Income Components |  | Three Months Ended June 30, 2018 |  |  | Six Months Ended June 30, 2018 |
Amortization of postretirement benefit plans: |  |  |  |  |  |
Prior service benefit (1) |  | $ | — |  |  | $ | — |
Unrecognized gain (1) |  |  | (12 | ) |  |  | (21 | )
Total before income tax |  |  | (12 | ) |  |  | (21 | )
Income tax expense |  |  | 5 |  |  |  | 9 |
Total reclassifications for the period |  | $ | (7 | ) |  | $ | (12 | )
| (1) | These accumulated other comprehensive income components are included in the computation of net periodic postretirement benefit costs, which are included in other non-operating income, net in our consolidated statements of operations (see Note 12 for additional details).

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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