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Goodwill and Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Mar. 31, 2012
Composition of other intangible assets    
Gross carrying amount $ 41,360 $ 24,385
Accumulated Amortization 12,843 9,213
Customer lists [Member]
   
Composition of other intangible assets    
Gross carrying amount 19,403 9,539
Accumulated Amortization 6,313 4,217
Trade names [Member]
   
Composition of other intangible assets    
Gross carrying amount 11,747 6,932
Accumulated Amortization 3,891 3,286
Favorable leases [Member]
   
Composition of other intangible assets    
Gross carrying amount 9,565 7,269
Accumulated Amortization 2,117 1,314
Other intangible assets [Member]
   
Composition of other intangible assets    
Gross carrying amount 645 645
Accumulated Amortization $ 522 $ 396