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Property, Plant and Equipment (Textual) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 15.0	$ 11.5	$ 32.7	$ 23.2
Rail
Property, Plant and Equipment [Line Items]
Depreciation expense on railcar assets leased to others	7.0	$ 6.0	$ 13.7	$ 12.2
Trade
Property, Plant and Equipment [Line Items]
Impairment charge for property, plant and equipment	$ 3.1