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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2013
Equity [Abstract] |
Amounts Included in Accumulated Other Comprehensive Income (Loss), Net of Tax | Amounts included in accumulated other comprehensive loss, net of tax, were as follows:
| Unrecognized Net Defined Benefit Plan Costs |  | Change in Fair Value of Derivatives |  | Foreign Currency Translation |  | Total
| (Dollars in thousands)
Balance at January 1, 2011 | $ | (73,607 | ) |  | $ | (6,695 | ) |  | $ | 17,276 |  |  | $ | (63,026 | )
Other comprehensive loss before reclassifications | (30,388 | ) |  | (3,221 | ) |  | (26,527 | ) |  | (60,136 | )
Amounts reclassified from accumulated other comprehensive loss | 4,786 |  |  | 3,094 |  |  | — |  |  | 7,880 |
Other comprehensive loss | (25,602 | ) |  | (127 | ) |  | (26,527 | ) |  | (52,256 | )
Balance at December 31, 2011 | (99,209 | ) |  | (6,822 | ) |  | (9,251 | ) |  | (115,282 | )
Other comprehensive loss before reclassifications | (13,389 | ) |  | (4,513 | ) |  | 12,740 |  |  | (5,162 | )
Amounts reclassified from accumulated other comprehensive loss | 6,923 |  |  | 3,608 |  |  | — |  |  | 10,531 |
Other comprehensive income | (6,466 | ) |  | (905 | ) |  | 12,740 |  |  | 5,369 |
Balance at December 31, 2012 | (105,675 | ) |  | (7,727 | ) |  | 3,489 |  |  | (109,913 | )
Other comprehensive income before reclassifications | 59,648 |  |  | 340 |  |  | 1,103 |  |  | 61,091 |
Amounts reclassified from accumulated other comprehensive loss | 7,106 |  |  | 3,597 |  |  | — |  |  | 10,703 |
Other comprehensive income | 66,754 |  |  | 3,937 |  |  | 1,103 |  |  | 71,794 |
Balance at December 31, 2013 | $ | (38,921 | ) |  | $ | (3,790 | ) |  | $ | 4,592 |  |  | $ | (38,119 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 + Details
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