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Significant Accounting Policies - Estimated Useful Lives of Assets (Detail)
12 Months Ended
Mar. 25, 2017
Buildings [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets Lesser of term of the lease or the economic life
Leasehold Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets Lesser of term of the lease or the economic life
Software and Electronic Equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 1 year
Software and Electronic Equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 6 years
Molds [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 2 years
Molds [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 5 years
Furniture and Fixtures [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 5 years
Furniture and Fixtures [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 8 years
Equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 3 years
Equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 8 years