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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Impaired long-lived assets
Mar. 31, 2014
Significant Other Observable Inputs (Level 2)
Recurring basis
Dec. 31, 2013
Significant Other Observable Inputs (Level 2)
Recurring basis
Mar. 31, 2014
Significant Unobservable Inputs (Level 3)
Nonrecurring basis
Mar. 31, 2013
Significant Unobservable Inputs (Level 3)
Nonrecurring basis
Summarizes the valuation of interest rate swaps and impaired assets          
Interest rate swaps asset   $ 421 $ 322    
Interest rate swaps liability   (3,492) (3,374)    
Impaired long-lived assets       368 1,216
Inventory write-down - Restructuring       2,331  
Impaired long-lived assets-Discontinued operations         $ 273
Weighted average disposal period of impaired assets 4 years        
Discount rate (as a percent) 8.60%