Sale of Investment in Iké (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
		May 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Iké foreign currency hedge	[1]				$ 22.0	$ 0.0
Pre-tax charges			$ 4.5	$ 9.2	5.9	9.4
Iké
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percentage							40.00%
Amount paid to acquire investment							$ 110.0
Impairment and put/call losses					22.3	9.4
Iké foreign currency hedge					22.0
Pre-tax gains on derivative			(0.6)		20.3
Pre-tax charges			4.5	9.2	5.9	9.4
Tax benefit					6.7
Tax expense on income from financial derivative					4.3
After-tax charges			$ 3.5	$ 6.4	$ 9.3	$ 6.6
Disposal group, not discontinued operations | Iké
Schedule of Equity Method Investments [Line Items]
Loss on sale of subsidiary		$ 3.9
Loss on sale of subsidiary, after tax		2.9
Iké Loan | Disposal group, not discontinued operations | Iké
Schedule of Equity Method Investments [Line Items]
Loans to Iké Grupo		$ 34.0
Iké Loan | London Interbank Offered Rate (LIBOR)
Schedule of Equity Method Investments [Line Items]
Interest rate, basis spread		4.25%

[1] Relates to Iké disposition and related financing. Refer to Note 5 for additional information