Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Other intangible assets
Gross Carrying Amount	$ 117.9	$ 112.7
Accumulated Amortization	(54.6)	(47.8)
Total intangible assets, net	63.3	64.9
Trademarks and trade names
Other intangible assets
Gross Carrying Amount	33.5	33.5
Accumulated Amortization	(23.2)	(21.9)
Total intangible assets, net	$ 10.3	11.6
Trademarks and trade names | Minimum
Other intangible assets
Useful Life (in Years)	15 years
Trademarks and trade names | Maximum
Other intangible assets
Useful Life (in Years)	30 years
Customer relationships
Other intangible assets
Gross Carrying Amount	$ 76.9	73.3
Accumulated Amortization	(30.8)	(25.8)
Total intangible assets, net	$ 46.1	47.5
Customer relationships | Minimum
Other intangible assets
Useful Life (in Years)	10 years
Customer relationships | Maximum
Other intangible assets
Useful Life (in Years)	15 years
Non-compete agreements
Other intangible assets
Useful Life (in Years)	5 years
Gross Carrying Amount	$ 0.2	0.2
Accumulated Amortization	(0.1)	0.0
Total intangible assets, net	$ 0.1	0.2
Technology
Other intangible assets
Useful Life (in Years)	15 years
Gross Carrying Amount	$ 7.3	5.7
Accumulated Amortization	(0.5)	(0.1)
Total intangible assets, net	$ 6.8	$ 5.6