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Property and Equipment - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 03, 2015
Dec. 28, 2013
Dec. 29, 2012
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 54.8us-gaap_Depreciation $ 51.2us-gaap_Depreciation $ 50.2us-gaap_Depreciation