Intangible Assets (Schedule of Identifiable Acquisition Related Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 1,104.2	$ 1,082.2
Accumulated Amortization	(191.6)	(155.3)
Total Net	912.6	926.9
Intangible Assets, Gross (Excluding Goodwill)	1,124.6	1,103.6
Intangible Assets, Net	933.0	948.3
Certifications [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount, Indefinite-lived Intangibles	3.5	3.5
Indefinite Lived Underlying Rights [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount, Indefinite-lived Intangibles	16.9	17.9
Customer relationships [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1,102.3	1,080.3
Accumulated Amortization	(191.1)	(155.0)
Total Net	911.2	925.3
Trade names [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	0.2	0.2
Accumulated Amortization	(0.2)	(0.1)
Total Net		0.1
Underlying rights [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1.7	1.7
Accumulated Amortization	(0.3)	(0.2)
Total Net	$ 1.4	$ 1.5