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

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Offsetting Assets [Line Items]
Margin Deposit Assets	$ 3.1		$ 0.1
Derivative Asset, Fair Value, Amount Offset Against Collateral	2.0		3.8
Largest Customer [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Offsetting Assets [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 132.9
Largest Customer [Member] \| Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Offsetting Assets [Line Items]
Concentration Risk, Percentage	30.00%
Largest Customer [Member] \| Supplier Concentration Risk [Member] \| Cost of Sales [Member]
Offsetting Assets [Line Items]
Purchases of Product	$ 50.9
Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative, Notional Amount	522.8		524.3
Derivative, Gain (Loss) on Derivative, Net	(0.7)	$ (1.1)
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative, Notional Amount	25.8		56.1
Derivative, Gain (Loss) on Derivative, Net	0.3	$ 4.4
Other Current Assets [Member] \| Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative Asset	2.2
Other Current Liabilities [Member] \| Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative Asset			1.5
Other Current Liabilities [Member] \| Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Offsetting Assets [Line Items]
Derivative Liability	$ 1.1		$ 3.0