Other Expenses, Net - Components of Other Expenses, Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Other Income and Expenses [Abstract]
Interest expense on borrowings	$ 6.2	$ 4.6
Interest income	(0.6)	(0.2)
Losses from equity method investments	1.5	0
Foreign currency exchange gain	0	(1.2)
Other, net	0.5	1.7
Other expenses, net	$ 7.6	$ 4.9