Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Offsetting Assets [Line Items]
Margin Deposit Assets	$ 10.6		$ 10.6		$ 0.1
Derivative Asset, Fair Value, Amount Offset Against Collateral	4.6		4.6		3.8
Largest Customer [Member] \| Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Offsetting Assets [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 222.4		415.0
Largest Customer [Member] \| Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Offsetting Assets [Line Items]
Concentration Risk, Percentage	12.00%
Largest Customer [Member] \| Supplier Concentration Risk [Member] \| Cost of Sales [Member]
Offsetting Assets [Line Items]
Purchases of Product	$ 165.3		110.7
Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative, Notional Amount	422.0		422.0		524.3
Derivative, Gain (Loss) on Derivative, Net	(1.5)	$ (0.1)	(2.2)	$ 1.2
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative, Notional Amount	6.0		6.0		56.1
Derivative, Gain (Loss) on Derivative, Net	1.0	$ (2.1)	1.3	$ (6.5)
Other Liabilities [Member] \| Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative Liability	3.7		3.7		1.5
Other Current Liabilities [Member] \| Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative Liability	$ 0.2		$ 0.2		$ 3.0