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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Balances Related to Each Component of Accumulated Other Comprehensive Income (Loss) | The changes in accumulated other comprehensive loss by component for the nine months ended September 30, 2018 and 2017 were as follows:
(Dollars and accompanying footnotes in thousands) | Foreign currency translation adjustments |  | Funded status of pension plans and other postretirement benefits(1) |  | Unrealized gain (loss) on derivative instruments (2) |  | Total
Beginning Balance December 31, 2017 | $ | (17,983 | ) |  | $ | (47,198 | ) |  | $ | 26 |  |  | $ | (65,155 | )
Other comprehensive income (loss) before reclassifications | (9,901 | ) |  | — |  |  | 1,308 |  |  | (8,593 | )
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 131 |  |  | — |  |  | 131 |
Net current-period other comprehensive income (loss) | (9,901 | ) |  | 131 |  |  | 1,308 |  |  | (8,462 | )
Ending Balance September 30, 2018 | $ | (27,884 | ) |  | $ | (47,067 | ) |  | $ | 1,334 |  |  | $ | (73,617 | )
Beginning Balance December 31, 2016 | $ | (46,446 | ) |  | $ | (45,816 | ) |  | $ | — |  |  | $ | (92,262 | )
Other comprehensive income (loss) before reclassifications | 23,136 |  |  | — |  |  | (487 | ) |  | 22,649 |
Actuarial net gain incurred in the fiscal year | — |  |  | 35 |  |  | — |  |  | 35 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 36 |  |  | 222 |  |  | 258 |
Net current-period other comprehensive income (loss) | 23,136 |  |  | 71 |  |  | (265 | ) |  | 22,942 |
Ending Balance September 30, 2017 | $ | (23,310 | ) |  | $ | (45,745 | ) |  | $ | (265 | ) |  | $ | (69,320 | )
(1) Net of taxes of $9,523 and $9,563 as of September 30, 2018 and December 31, 2017, respectively. Net of taxes of $9,122 and $9,160 as of September 30, 2017 and December 31, 2016, respectively. (2) Net of taxes of $375 and $15 as of September 30, 2018 and December 31, 2017, respectively. Net of taxes of $151 and $0 as of September 30, 2017 and December 31, 2016, respectively.

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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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