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Employee Retirement and Profit Sharing Plans (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2012
Mar. 26, 2011
Mar. 27, 2010
Changes in plan assets and benefit obligations recognized in other comprehensive income      
Net transition obligation $ 0 $ 0  
Prior service cost 0 0  
Net actuarial (loss) gain (3,188) 756  
Total $ (3,188) $ 756 $ 1,311