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Derivative Financial Instruments - Additional Information (Detail) - USD ($)
4 Months Ended
Mar. 28, 2012
Apr. 23, 2016
Apr. 25, 2015
Jan. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]        
Cash settlement on hedge $ 3,100,000      
Hedge ineffectiveness   $ 0 $ 0  
Current assets representing collateral for hedged positions        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instrument, asset   $ 7,300,000   $ 20,700,000
Recognized after debt issuance        
Derivative Instruments, Gain (Loss) [Line Items]        
Cash settlement on hedge, net of tax 600,000      
Amortized over remaining term of senior notes        
Derivative Instruments, Gain (Loss) [Line Items]        
Cash settlement on hedge, net of tax 2,500,000      
Amount reclassified to earnings gross from interest rate hedge $ 1,500,000