Equity and Debt Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Equity Method Investments	$ 72.6		$ 72.6		$ 80.0
Dividends from unconsolidated affiliates			7.3	$ 5.1
Available-for-sale Securities, Noncurrent	1.2		1.2		2.4
Available-for-sale Equity Securities, Gross Unrealized Gain	(0.1)	$ (1.2)	(1.2)	(0.4)
Revenues	654.4	856.2	1,440.1	1,691.0
Gross Profit	103.6	139.4	240.3	265.6
Net Income Attributable to Stockholders	3.6	16.2	18.9	19.6
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Revenues	95.2	110.6	197.0	220.0
Gross Profit	49.0	37.2	63.9	74.9
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	4.5	11.0	10.9	21.8
Net Income Attributable to Stockholders	$ 4.5	$ 11.0	$ 10.9	21.8
HYGFS [Member]
Equity Method Investment, Ownership Percentage	20.00%		20.00%
Equity Method Investments	$ 18.4		$ 18.4		22.8
Dividends from unconsolidated affiliates			$ 6.4	4.1
SN [Member]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Equity Method Investments	$ 41.3		$ 41.3		43.9
Dividends from unconsolidated affiliates			0.9	$ 1.0
Bolzoni [Member]
Equity Method Investments	0.4		0.4		0.3
Equity Investment 3 [Member]
Debt Securities	$ 11.3		$ 11.3		$ 10.6