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Basis Of Presentation And Description Of Business (Basis of Presentation and Fiscal Year) (Details)
3 Months Ended 4 Months Ended 6 Months Ended
Aug. 13, 2012
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May 21, 2012
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Aug. 13, 2012
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Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Number of four-week accounting periods in fiscal year     13
Number of reporting periods in first quarter   4  
Number of weeks in reporting period 12 16  
Number of reporting periods in quarter, other than first quarter 3