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Basis of Presentation (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Components of accumulated other comprehensive loss [Abstract]    
Foreign currency translation adjustment $ (34) $ (34)
Pension liability, net of tax of $(4,174) (12,081) (12,081)
Unrealized losses on cash flow hedges, net of tax of $(63) and $(109) (1,379) (2,381)
Accumulated other comprehensive loss (13,494) (14,496)
Pension liability, tax effect (4,174) (4,174)
Unrealized losses on cash flow hedges, tax effect (63) (109)
Derivative Instruments, Gain (Loss) [Line Items]    
Tax benefit 46  
Net of tax (1,002)  
Interest expense [Member]
    
Derivative Instruments, Gain (Loss) [Line Items]    
Gross $ (1,048)