Debt (Details Textual) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Other Short-term Borrowings		$ 110.8			$ 15.8
Annual commitment fees	$ 1.6	2.0	$ 2.0
Fixed charge coverage ratio	2.4
Minimum debt covenant fixed charge coverage ratio	1.2
Amount of secured debt available to be borrowed in accordance with public debt covenants					1,605.0
Foreign Line of Credit [Member]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility | €				€ 35.0
Line of Credit Facility, Remaining Borrowing Capacity | €				€ 20.9
Line of Credit US [Member]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility		600.0			600.0
Line of Credit Facility, Remaining Borrowing Capacity					600.0
Rail Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity					250.0
Rail Facility [Member]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility		$ 250.0			$ 250.0