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Derivative Financial Instruments - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
9 Months Ended 0 Months Ended
Oct. 04, 2014
Mar. 28, 2012
4.375% Senior Notes
Oct. 04, 2014
4.375% Senior Notes
Mar. 28, 2012
4.375% Senior Notes
Oct. 04, 2014
Other Current Assets
Dec. 28, 2013
Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]            
Commodity derivatives fair value, net $ (27.1)          
Notes bearing interest rate     4.375% 4.375%    
Debt instrument term   10 years        
Cash settlement on hedge 3.1          
Derivative instrument, asset         $ 32.3 $ 16.9