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Affiliate Equity (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Affiliate Equity |  |  |  |
Distributions paid to affiliate partners |  | $ 431.4 | $ 569.4 | $ 267.1
Payments to acquire interest in Affiliates |  | 130.8 | 32.6 | 36.9
Issuance of interest in Affiliates |  | 6.1 | 11.0 | 2.5
Proceeds from Collection of Advance to Affiliate |  | 7.4 | 9.7 | 6.9
Total amount paid to affiliates |  | 17.2 | 4.4 | $ 5.5
Other Assets |  |  |  |
Affiliate Equity |  |  |  |
Due from Affiliates |  | 22.6 | 20.8 |
Other Liabilities |  |  |  |
Affiliate Equity |  |  |  |
Due to Affiliates |  | $ 62.3 | $ 29.3 |
Minimum |  |  |  |
Affiliate Equity |  |  |  |
Affiliate equity, conditional right to put interest, period | 5 years |  |  |
Maximum |  |  |  |
Affiliate Equity |  |  |  |
Affiliate equity, conditional right to put interest, period | 15 years |  |  |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.3) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 + Details
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