Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - Successor [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Deferred tax asset
Tax loss, credit and interest carryforwards	$ 227.4	$ 198.5
Goodwill and intangibles	93.6	90.8
Compensation and employee benefits	93.8	92.5
Accruals and other reserves	30.4	58.4
Other	12.1	0.0
Total deferred tax assets	457.3	440.2
Less: Valuation allowance	(127.8)	(101.9)
Net deferred tax assets	329.5	338.3
Deferred tax liabilities
Property, Plant & Equipment	(191.5)	(215.0)
Equity Investment & Other Securities	(0.5)	(2.2)
Unremitted earnings	(6.3)	(8.5)
Long-Term Debt	(6.6)	(8.1)
Other	0.0	(5.5)
Total deferred tax liabilities	(204.9)	(239.3)
Net deferred tax asset	124.6	99.0
Deferred Tax Assets, Net, Classification [Abstract]
Deferred income taxes	69.5	64.5
Current liability	(6.6)	(7.3)
Non-current assets	227.2	250.0
Non-current liability	(165.5)	(208.2)
Net deferred tax asset	$ 124.6	$ 99.0