Income Taxes (Details) - Income Tax (Benefit) Expense - USD ($) $ in Millions	3 Months Ended	8 Months Ended		9 Months Ended	10 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2015	Oct. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
U.S.:
Income tax expense (benefit)	$ 35.4			$ 59.8
Successor [Member]
U.S.:
Federal		$ 0.3				$ 0.7	$ (0.6)
State and local		0.1				(0.2)	0.4
Foreign		1.3				120.1	36.7
Total current		1.7				120.6	36.5
U.S.:
Federal		(2.1)				6.4	(18.3)
State and local		(0.3)				(5.2)	0.4
Foreign		(5.1)				(46.7)	(25.3)
Total deferred		(7.5)	$ (7.5)			(45.5)	(43.2)
Income tax expense (benefit)		$ (5.8)	$ (5.8)			$ 75.1	$ (6.7)
Predecessor [Member]
U.S.:
Federal					$ (5.3)
State and local					0.3
Foreign					22.8
Total current					17.8
U.S.:
Federal					(3.1)
State and local					0.1
Foreign					(1.8)
Total deferred					(4.8)
Income tax expense (benefit)					$ 13.0