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Long-Term Debt (Fair Value Measurements) (Details) (Predecessor [Member], Fuel Futures Contracts [Member], Designated as Hedging Instrument [Member], USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
contracts
gal
Predecessor [Member] | Fuel Futures Contracts [Member] | Designated as Hedging Instrument [Member]
         
Derivatives, Fair Value [Line Items]          
Fair value of contract         $ 12,800
Number of contracts         16
Gallons in contract         600,000
Gain/(Loss) on contracts $ 800,000 $ (300,000) $ 800,000 $ 700,000