Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Other intangible assets
Gross Carrying Amount	$ 129.3	$ 117.9
Accumulated Amortization	(62.1)	(54.6)
Total intangible assets, net	67.2	63.3
Trademarks and trade names
Other intangible assets
Gross Carrying Amount	33.5	33.5
Accumulated Amortization	(24.3)	(23.2)
Total intangible assets, net	$ 9.2	10.3
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	76.9
Accumulated Amortization	(36.0)	(30.8)
Total intangible assets, net	$ 40.9	46.1
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)	(0.1)
Total intangible assets, net	$ 0.1	0.1
Technology
Other intangible assets
Useful Life (in Years)	15 years
Gross Carrying Amount	$ 7.3	7.3
Accumulated Amortization	(1.0)	(0.5)
Total intangible assets, net	6.3	6.8
Patents
Other intangible assets
Gross Carrying Amount	11.4	0.0
Accumulated Amortization	(0.7)	0.0
Total intangible assets, net	$ 10.7	$ 0.0
Patents | Minimum
Other intangible assets
Useful Life (in Years)	14 years
Patents | Maximum
Other intangible assets
Useful Life (in Years)	20 years