Investments in Unconsolidated Entities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investments in joint ventures included in unconsolidated entities	$ 76.3		$ 76.3		$ 64.3
Net income (loss) attributable to variable interest entities	$ 0.5	$ (0.6)	$ (2.0)	$ (1.8)