CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (0.2)	$ 4.3
Other comprehensive (loss), net of tax
Foreign currency translation adjustment	(5.5)	(2.9)
Net change in accumulated other comprehensive loss	(5.5)	(2.9)
Comprehensive (loss) income	$ (5.7)	$ 1.4