CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015
Statement Of Financial Position [Abstract]
Trade receivables allowance	$ 4.8	$ 3.4
Preferred Stock, Par value	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	50,000,000	50,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	850,000,000	850,000,000
Common stock, shares issued	244,667,472	243,008,679
Common stock, shares outstanding	244,667,472	243,008,679