CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Comprehensive Income Net Of Tax [Abstract]
Net loss	$ (19.3)	$ (53.7)	$ (45.3)	$ (160.4)
Foreign currency translation adjustments	32.0	(14.5)	20.3	(35.5)
Comprehensive income/(loss)	$ 12.7	$ (68.2)	$ (25.0)	$ (195.9)