Other Assets and Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Schedule of Other Assets and Liabilities [Line Items]
Total	$ 392.6	$ 307.7
Accrued Expenses and Other Current Liabilities
Schedule of Other Assets and Liabilities [Line Items]
Income and other taxes payable	159.8	126.0
Short-term derivative liabilities (see Note 11)	14.2	16.2
Interest payable	11.9	10.2
Employee costs	30.8	46.5
Environmental liabilities (see Note 13)		3.8
Product financing agreements	6.6	0.0
RINs Obligation deficit (see Note 12)	11.5	11.8
Accrued Utilities	7.1	10.6
Tank Inspection Liabilities	7.0	7.0
Crude liabilities	107.3	42.3
Other	$ 32.7	$ 33.3