Accounting Policies and Basis of Presentation - Summary of the Adjustments on the Impacted Financial Statements (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales		$ 370.4		$ 718.1
Operating (loss) income	$ 9.9	3.9	$ (13.8)	4.7
Loss on debt extinguishment	0.0	0.0	0.0	(76.3)
Loss from continuing operations before taxes on income	3.0	(4.3)	(31.5)	(89.3)
Provision for taxes on income	2.3	0.7	3.8	108.4
Income (loss) from continuing operations	0.7	(5.0)	(35.3)	(197.7)
Loss from discontinued operations, net of income taxes	$ (0.2)	(0.8)	$ (0.2)	(4.0)
Net loss		$ (5.8)		$ (201.7)
Loss per common share - basic and diluted
Loss from continuing operations (in dollars per share)		$ (0.04)		$ (1.44)
Loss from discontinued operations (in dollars per share)		(0.01)		(0.03)
Loss per common share (in dollars per share)		$ (0.04)		$ (1.47)
Impact of change to FIFO
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales		$ 0.9		$ 3.1
Operating (loss) income		(0.9)		(3.1)
Loss on debt extinguishment				0.0
Loss from continuing operations before taxes on income		(0.9)		(3.1)
Provision for taxes on income		0.0		(13.8)
Income (loss) from continuing operations		(0.9)		10.7
Loss from discontinued operations, net of income taxes		0.0		0.0
Net loss		$ (0.9)		$ 10.7
Loss per common share - basic and diluted
Loss from continuing operations (in dollars per share)		$ (0.01)		$ 0.08
Loss from discontinued operations (in dollars per share)		0.00		0.00
Loss per common share (in dollars per share)		$ (0.01)		$ 0.08
As previously presented
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales		$ 369.5		$ 715.0
Operating (loss) income		4.8		7.8
Loss on debt extinguishment		0.0		(76.3)
Loss from continuing operations before taxes on income		(3.4)		(86.2)
Provision for taxes on income		0.7		122.2
Income (loss) from continuing operations		(4.1)		(208.4)
Loss from discontinued operations, net of income taxes		(0.8)		(4.0)
Net loss		$ (4.9)		$ (212.4)
Loss per common share - basic and diluted
Loss from continuing operations (in dollars per share)		$ (0.03)		$ (1.52)
Loss from discontinued operations (in dollars per share)		(0.01)		(0.03)
Loss per common share (in dollars per share)		$ (0.04)		$ (1.55)

Total costs related to goods produced and sold during the reporting period.

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