Derivative Financial Instruments - Classification and Amount of Loss Reclassified From Accumulated Other Comprehensive Income or Loss to Consolidated Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Total derivatives designated as cash flow hedging instruments	$ (0.1)	$ (0.2)	$ (0.3)	$ (0.8)
Interest expense | Interest rate swap contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total derivatives designated as cash flow hedging instruments	$ (0.1)	$ (0.2)	$ (0.3)	$ (0.8)