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Supplemental Cash Flow Information - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jul. 12, 2014
Jul. 20, 2013
Supplemental Cash Flow Elements [Abstract]    
Restricted stock issuance $ 7.0 $ 3.8
Capital expenditures recorded in current liabilities $ 3.8 $ 1.2