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Affiliated Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Affiliate Equity [Line Items]
Distributions paid to affiliate partners	$ 92.0	$ 101.6
Payments to acquire interest in affiliates	23.6	57.0
Issuance of interest in affiliates	6.0	$ 2.9
Other Assets
Affiliate Equity [Line Items]
Due from affiliates	23.1		$ 22.9
Other Liabilities
Affiliate Equity [Line Items]
Due to affiliates	$ 91.5		$ 12.1

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[Line Items] for Affiliate Equity [Table]

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For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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