Earnings per Share (EPS) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Earnings per Share (EPS) (Textuals) [Abstract]
Antidilutive shares excluded from EPS calculation	0.2	0.5
Earnings Per Share [Line Items]
Common Stock, Value, Issued	$ 137.3
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	1.1	$ 0.0
EPS numerator:
Loss from continuing operations, net of income taxes	124.3	(167.7)
Less: Net income attributable to noncontrolling interests	4.8	0.0
Loss from continuing operations attributable to common stockholders, after allocation of earnings to participating securities	118.4	(167.7)
Loss from discontinued operations, net of income taxes	(4.1)	(3.4)
Loss from discontinued operations allocated to participating securities	(0.1)	0.0
Loss from discontinued operations attributable to common stockholders, after allocation of earnings to participating securities	(4.0)	(3.4)
Net loss attributable to common stockholders, after earnings allocated to participating securities	$ 114.4	$ (171.1)
EPS denominator:
Weighted Average Number of Shares Outstanding, Basic	18.3	18.3
Weighted Average Number Diluted Shares Outstanding Adjustment	0.1	0.0
Weighted Average Number of Shares Outstanding, Diluted	18.4	18.3
Basic EPS attributable to common stockholders:
Loss from continuing operations	$ 6.46	$ (9.17)
Loss from discontinued operations	(0.22)	(0.18)
Net loss attributable to common stockholders	6.24	(9.35)
Diluted EPS attributable to common stockholders:
Loss from continuing operations	6.44	(9.17)
Loss from discontinued operations	(0.23)	(0.18)
Net loss attributable to common stockholders	$ 6.21	$ (9.35)
Income (loss) from continuing operations attributable to common stockholders, before allocation of earnings to participating securities	$ 119.5	$ (167.7)
Unvested Emergence RSU's [Domain]
Earnings Per Share [Line Items]
Common Stock, Value, Issued	3.6
Common Stock [Member]
Earnings Per Share [Line Items]
Common Stock, Value, Issued	$ 0.2		$ 0.2
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01	$ 0.01