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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2012
Amounts Included in Accumulated Other Comprehensive (Loss) Income, Net of Tax | Amounts included in accumulated other comprehensive loss, net of tax, are 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, 2010 |  | $ | (69,798 | ) |  | $ | (7,895 | ) |  | $ | 22,092 |  |  | $ | (55,601 | )
Other comprehensive (loss) income |  |  | (3,809 | ) |  |  | 1,200 |  |  |  | (4,816 | ) |  |  | (7,425 | )
Balance at December 31, 2010 |  |  | (73,607 | ) |  |  | (6,695 | ) |  |  | 17,276 |  |  |  | (63,026 | )
Other comprehensive (loss) income |  |  | (25,602 | ) |  |  | (127 | ) |  |  | (26,527 | ) |  |  | (52,256 | )
Balance at December 31, 2011 |  |  | (99,209 | ) |  |  | (6,822 | ) |  |  | (9,251 | ) |  |  | (115,282 | )
Other comprehensive (loss) income |  |  | (6,466 | ) |  |  | (905 | ) |  |  | 12,740 |  |  |  | 5,369 |
Balance at December 31, 2012 |  | $ | (105,675 | ) |  | $ | (7,727 | ) |  | $ | 3,489 |  |  | $ | (109,913 | )

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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=20435746&loc=SL7669686-108580 + Details
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