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Disposal Group, Including Discontinued Operation, Non Controlling Interest

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Disposal Group, Number Of Asphalt Terminals

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Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from (to) the discontinued operation after the disposal transaction.

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Amount of revenue in continuing operations related to continuing involvement in a discontinued operation after disposal that before the disposal was eliminated as intra-entity transactions.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Discontinued Operations and Assets Held for Sale Narrative (Details) $ in Millions			1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 17, 2018 USD ($)	May 21, 2018 USD ($)	Nov. 30, 2016 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Mar. 16, 2018 USD ($)	Feb. 12, 2018 USD ($) asphalt_terminal	Aug. 31, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from equity method investment		$ 110.8
Impairment of assets held for sale					$ 27.5	$ 0.0	$ 0.0
Gain on sale of business					13.3	0.0	0.0
Proceeds from sale of business					110.8	0.0	0.0
Cash provided by investing activities - discontinued operations					20.0	12.2	288.9
Income from discontinued operations attributed to non-controlling interest					8.1	0.0	0.0
Four Asphalt Terminals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of asphalt terminals \| asphalt_terminal									4
Base proceeds from equity method investment									$ 75.0
California Discontinued Entities - AltAir
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Base proceeds from equity method investment								$ 85.2
Gain on sale of business					(41.4)
Proceeds from sale of business					70.4
Cash provided by investing activities - discontinued operations					14.9
California Discontinued Entities - Long Beach
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business				$ (1.4)
Proceeds from sale of business	$ 14.5
Retail Entities \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Base proceeds from equity method investment										$ 535.0
Gain on sale of business							134.1
Proceeds from sale of business			$ 378.9
Net liabilities retained from Retail Entities			$ (62.8)
Revenue					148.5	410.5	54.3
Cash inflows					166.2	411.5	$ 43.5
California Discontinued Entities \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business					(40.0)	0.0
Disposal group, non-controlling interest						10.5
Income from discontinued operations attributed to non-controlling interest					$ 8.1	$ (0.6)
Paramount-Nevada Asphalt Company, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage		50.00%							50.00%