Classification and Amount of Gains or Losses Reclassified From Accumulated Other Comprehensive Income or Loss into Consolidated Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Total derivatives designated as cash flow hedging instruments	$ (0.1)	$ (0.4)
Interest expense [Member] | Interest rate swap contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total derivatives designated as cash flow hedging instruments	$ (0.1)	$ (0.4)