Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Other intangible assets
Gross Carrying Amount	$ 129.3	$ 129.3
Accumulated Amortization	(69.9)	(62.1)
Impairment	(7.3)
Total intangible assets, net	52.1	67.2
Trademarks and trade names
Other intangible assets
Gross Carrying Amount	33.5	33.5
Accumulated Amortization	(25.4)	(24.3)
Impairment	(1.5)
Total intangible assets, net	$ 6.6	9.2
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	(41.2)	(36.0)
Impairment	(1.2)
Total intangible assets, net	$ 34.5	40.9
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)
Impairment	(0.1)
Total intangible assets, net	$ 0.0	0.1
Technology
Other intangible assets
Useful Life (in Years)	15 years
Gross Carrying Amount	$ 7.3	7.3
Accumulated Amortization	(1.5)	(1.0)
Impairment	(4.5)
Total intangible assets, net	1.3	6.3
Patents
Other intangible assets
Gross Carrying Amount	11.4	11.4
Accumulated Amortization	(1.7)	(0.7)
Impairment	0.0
Total intangible assets, net	$ 9.7	$ 10.7
Patents | Minimum
Other intangible assets
Useful Life (in Years)	14 years
Patents | Maximum
Other intangible assets
Useful Life (in Years)	20 years