Quarterly report pursuant to Section 13 or 15(d)

Derivative and Other Comprehensive Income (Details 2)

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Derivative and Other Comprehensive Income (Details 2) (Designated as hedging instruments, Interest rate swap agreements, USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 25, 2011
Designated as hedging instruments | Interest rate swap agreements
   
Derivative and Other Comprehensive Income    
Accrued liabilities $ 537 $ 449
Other non-current liabilities 683 85
Total derivatives $ 1,220 $ 534