Estimated Useful Lives of Property Plant and Equipment Excluding Capital Lease Asset (Detail)	12 Months Ended
	Dec. 30, 2012
Building
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Leasehold And Other Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Leasehold And Other Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	15 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	15 years