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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |
Cost of sales |  | $ 309.0 |  | $ 1,027.1
Operating loss | $ 7.9 | (134.2) | $ (5.9) | (129.5)
Loss from continuing operations before taxes on income | (3.4) | (144.2) | (34.9) | (233.5)
Provision (benefit) for taxes on income | (13.1) | (5.3) | (9.3) | 103.1
Income (loss) from continuing operations | 9.7 | (138.9) | (25.6) | (336.6)
Loss from discontinued operations, net of income taxes | $ (0.1) | (1.8) | $ (0.3) | (5.8)
Net income (loss) |  | $ (140.7) |  | $ (342.4)
Income (loss) per common share - basic and diluted |  |  |  |
Income (loss) from continuing operations (in dollars per share) |  | $ (1.01) |  | $ (2.45)
Loss from discontinued operations (in dollars per share) |  | (0.01) |  | (0.04)
Income (loss) per common share (in dollars per share) |  | $ (1.02) |  | $ (2.49)
Impact of change to FIFO |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |
Cost of sales |  | $ 0.7 |  | $ 3.8
Operating loss |  | (0.7) |  | (3.8)
Loss from continuing operations before taxes on income |  | (0.7) |  | (3.8)
Provision (benefit) for taxes on income |  |  |  | (13.8)
Income (loss) from continuing operations |  | (0.7) |  | 10.0
Net income (loss) |  | $ (0.7) |  | $ 10.0
Income (loss) per common share - basic and diluted |  |  |  |
Income (loss) from continuing operations (in dollars per share) |  | $ (0.01) |  | $ 0.07
Income (loss) per common share (in dollars per share) |  | $ (0.01) |  | $ 0.07
As previously presented |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |
Cost of sales |  | $ 308.3 |  | $ 1,023.3
Operating loss |  | (133.5) |  | (125.7)
Loss from continuing operations before taxes on income |  | (143.5) |  | (229.7)
Provision (benefit) for taxes on income |  | (5.3) |  | 116.9
Income (loss) from continuing operations |  | (138.2) |  | (346.6)
Loss from discontinued operations, net of income taxes |  | (1.8) |  | (5.8)
Net income (loss) |  | $ (140.0) |  | $ (352.4)
Income (loss) per common share - basic and diluted |  |  |  |
Income (loss) from continuing operations (in dollars per share) |  | $ (1.00) |  | $ (2.52)
Loss from discontinued operations (in dollars per share) |  | (0.01) |  | (0.04)
Income (loss) per common share (in dollars per share) |  | $ (1.01) |  | $ (2.56)

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