Equity Method Investments (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Equity Method Investments and Joint Ventures [Abstract]
Total revenues	$ 170.0	$ 205.7	$ 418.2	$ 492.2
Gross (loss) profit	(3.0)	(3.5)	(3.8)	(4.0)
Operating and non-operating expense	6.3	6.9	16.3	18.7
Net loss	$ (9.3)	$ (10.4)	$ (20.1)	$ (22.7)