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Employee Retirement and Profit Sharing Plans (Details 7) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Mar. 31, 2012
Mar. 26, 2011
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets $ 18,224 $ 17,344 $ 17,274
U.S. Companies Equity Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 6,465 7,450  
International Companies Equity Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 3,590 2,972  
U.S. Corporate Debt Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 6,840 6,058  
International bonds [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 364 309  
Cash and Cash Equivalents [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 288 555  
Commodities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 677    
Quoted prices in active markets for identical assets (Level 1) [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 10,732 10,422  
Quoted prices in active markets for identical assets (Level 1) [Member] | U.S. Companies Equity Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 6,465 7,450  
Quoted prices in active markets for identical assets (Level 1) [Member] | International Companies Equity Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 3,590 2,972  
Quoted prices in active markets for identical assets (Level 1) [Member] | Commodities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 677    
Significant other observable inputs (Level 2) [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 7,492 6,922  
Significant other observable inputs (Level 2) [Member] | U.S. Corporate Debt Securities [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 6,840 6,058  
Significant other observable inputs (Level 2) [Member] | International bonds [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets 364 309  
Significant other observable inputs (Level 2) [Member] | Cash and Cash Equivalents [Member]
     
Fair Value of Plan Assets      
Fair value measurement of defined benefit plan assets $ 288 $ 555