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Property and Equipment, Net - Additional Information (Detail) (USD $)
 12 Months Ended
Mar. 30, 2013
Store
Mar. 31, 2012
Store
Apr. 02, 2011
Store
Property, Plant and Equipment [Line Items]      
Depreciation and amortization of property and equipment $ 52,700,000 $ 36,000,000 $ 23,600,000
Impairment of long-lived assets 725,000 3,292,000 3,834,000
Number of stores impaired 1 2 2
Property, Plant and Equipment, Other Types
      
Property, Plant and Equipment [Line Items]      
Impairment of long-lived assets $ 725,000 $ 3,292,000 $ 2,052,000