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Amount of Gain or Loss Recognized in Accumulated Other Comprehensive Income or Loss (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Derivative Instruments, Gain (Loss) [Line Items]    
Interest rate swap contracts $ (0.3) $ 0
Interest rate swap contracts [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Interest rate swap contracts $ (0.3) $ 0