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) (Interest rate swap agreements, USD $)
In Thousands, unless otherwise specified
4 Months Ended
Apr. 21, 2013
Apr. 21, 2013
Designated as hedging instruments
Dec. 30, 2012
Designated as hedging instruments
Derivative and other comprehensive income      
Accrued liabilities   $ 532 $ 539
Other non-current liabilities   497 677
Total derivatives   1,029 1,216
Collateral obligation $ 0