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Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Summary of Deferred Financing Costs



	Predecessor																									Successor
	Dec. 31, 2012				Additions/ (Reclasses)				Reductions				Dec. 31, 2013				Additions				Reductions					Sep. 30, 2014
Other current assets:
Bank credit facilities	$	3.0			$	2.2			$	(5.2	)		$	—			$	—			$	—				$	—
Convertible notes	—				1.8				(0.2		)		1.6				—				(1.6		)			—
Other long-term assets:
Convertible notes	3.6				(1.8		)		(1.8		)		—				—				—					—
PIK toggle notes	—				—				—				—				0.7				—					0.7
Total	$	6.6			$	2.2			$	(7.2	)		$	1.6			$	0.7			$	(1.6	)			$	0.7



	Successor
	Sep. 30, 2014				Additions				Reductions				Dec. 31, 2014
Other long-term assets:
PIK toggle notes	0.7				—				—				0.7
Total	$	0.7			$	—			$	—			$	0.7