Contingencies, Environmental and Legal Matters (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

The AROs are included in "Other long-term liabilities" in the Consolidated Balance Sheets as of December 31, 2015 and 2014. Changes in the Company’s AROs are as follows:

(amounts in millions)	Twelve Months Ended   December 31, 2015			Twelve Months Ended   December 31, 2014			Period from inception (April 23, 2013) through December 31, 2013		Period from January 1, 2013 to October 31, 2013
	(Successor)			(Successor)			(Successor)		(Predecessor)
AROs, beginning of period	$	18.5		$	4.8		$	—	$	2.3
Acquisitions	0.4			13.2			4.8		—
Additional obligations incurred	—			0.5			—		—
Accretion expense	1.0			0.7			—		0.1
Remeasurements	(0.2		)	—			—		—
Payments/ settlements	(0.4		)	(0.2		)	—		(0.1		)
Foreign currency adjustments	(1.8		)	(0.5		)	—		(0.1		)
AROs, end of period	$	17.5		$	18.5		$	4.8	$	2.2