Investments in Unconsolidated Entities (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
---|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
Dec. 31, 2016 |
|
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||||
Investments in joint ventures included in unconsolidated entities | $ 127.3 | $ 127.3 | $ 91.9 | ||
Net (income) loss attributable to variable interest entities | $ 1.3 | $ (0.4) | $ 5.1 | $ 1.6 |