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

+ References

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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 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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Discontinued Operations and Assets Held for Sale (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 17, 2018	Mar. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Mar. 16, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on sale of business			$ 0.0	$ 0.0	$ (13.2)	$ 0.0
Proceeds from sale of business					110.8	0.0
Cash provided by investing activities - discontinued operations					20.0	$ 13.5
California Discontinued Entities - AltAir
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration of business disposition							$ 85.9
(Gain) loss on sale of business					41.2
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) loss on sale of business			$ (1.4)		$ (1.4)
Proceeds from sale of business	$ 14.5