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Associate Retirement Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 22, 2013
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
Contributions to pension plan $ 0
Central States, Southeast and Southwest Areas Pension Fund [Member]
 
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
Contribution as a percentage of total contributions 1.00%
Pension contributions during last plan year $ 8.2
Maximum company contribution as percentage of total employer contributions 5.00%