Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic and dilutive net income (loss) available to common shareholders	$ 0.7	$ (85.8)	$ (83.6)
Average Common Shares Outstanding - Basic	31,736	28,592	9,332
Dilutive weighted average shares outstanding	32,592	28,592	9,332
Earnings (Loss) Per Share - Basic	$ 0.02	$ (3.00)	$ (8.96)
Earnings (Loss) Per Share - Diluted	$ 0.02	$ (3.00)	$ (8.96)
Stock Compensation Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	616	0	0
Anti-dilutive unvested shares, options, and stock units (a)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares and options units	71	1,072	691
Anti-dilutive 6% Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares and options units	0	0	18
Anti-dilutive Series A Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares and options units	0	0	5,226
Anti-dilutive Series B Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	240	0	0
Antidilutive shares and options units	0	982	4,219

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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