Share-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Number of Awards
Exercised (in shares)	(19,627)	(73,067)	(236,540)
Stock options
Number of Awards
Balance at the beginning of the period (in shares)	1,507,878	1,063,895	1,088,728
Granted (in shares)	277,769	702,411	243,292
Exercised (in shares)	(19,627)	(73,067)	(236,540)
Cancelled (in shares)	(64,518)	(185,361)	(31,585)
Balance at the end of the period (in shares)	1,701,502	1,507,878	1,063,895
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 44.61	$ 42.69	$ 37.51
Granted (in dollars per share)	36.31	48.28	54.65
Exercised (in dollars per share)	25.12	31.53	30.19
Cancelled (in dollars per share)	47.98	52.67	49.83
Balance at the end of the period (in dollars per share)	$ 43.35	$ 44.61	$ 42.69
Additional disclosures
Weighted Average Remaining Contractual Term	6 years 7 months 6 days
Aggregate Intrinsic Value	$ 2.6
Number of Awards, Exercisable (in shares)	1,295,510
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 43.40
Weighted Average Remaining Contractual Term, Exercisable	6 years
Aggregate Intrinsic Value, Exercisable	$ 2.6