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Accumulated Other Comprehensive Loss Parenthetical (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]        
Other comprehensive income, reclassification adjustment from AOCI, pension plans, tax $ (2) $ 899 $ (6) $ 2,647