Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Other Current Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
RINs Obligation	$ 13.0	$ 15.8
Transition Services Agreement Payable	19.8	0.0
Working capital adjustment	6.9
Other	18.9	18.0
Total other current liabilities	$ 58.6	$ 33.8

Disposal Group, Including Discontinued Operation, Consideration, Working Capital Adjustment

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- Definition

RINs Obligation

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Amount classified as accounts payable attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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