Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Detail)

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Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Equity [Abstract]      
Foreign Currency Translation Adjustments $ (131) $ 183 $ (90)
Reclassification to Interest Expense 109 209 298
Mark to Market Adjustments for Derivatives 2 (34) (171)
Tax Benefit (Expense) (38) (61) (45)
Mark to Market Adjustments for Derivatives 73 114 82
Retirement Liability Adjustment 1,893 (6,451) (1,348)
Tax Benefit (Expense) (663) 2,257 472
Retirement Liability Adjustment 1,230 (4,194) (876)
Other Comprehensive (Loss) Income $ 1,172 $ (3,897) $ (884)