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Accounting Policies and Basis of Presentation (Tables) | 9 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Summary of the Adjustments on the Impacted Financial Statements | A summary of the adjustments on the impacted financial statement line items in the Condensed Consolidated Statements of Operations as revised and as previously presented in the September 30, 2016 Form 10-Q is as follows ($ in millions):
|  | Three Months Ended September 30, 2016 |  |  | Nine Months Ended September 30, 2016 |
|  | As previously presented |  |  | Impact of change to FIFO |  |  | As revised |  |  | As previously presented |  |  | Impact of change to FIFO |  |  | As revised |
Cost of sales |  | $ | 308.3 |  |  | $ | 0.7 |  |  | $ | 309.0 |  |  | $ | 1,023.3 |  |  | $ | 3.8 |  |  | $ | 1,027.1 |
Operating loss |  |  | (133.5 | ) |  |  | (0.7 | ) |  |  | (134.2 | ) |  |  | (125.7 | ) |  |  | (3.8 | ) |  |  | (129.5 | )
Loss from continuing operations before taxes on income |  |  | (143.5 | ) |  |  | (0.7 | ) |  |  | (144.2 | ) |  |  | (229.7 | ) |  |  | (3.8 | ) |  |  | (233.5 | )
Provision (benefit) for taxes on income |  |  | (5.3 | ) |  |  | — |  |  |  | (5.3 | ) |  |  | 116.9 |  |  |  | (13.8 | ) |  |  | 103.1 |
Income (loss) from continuing operations |  |  | (138.2 | ) |  |  | (0.7 | ) |  |  | (138.9 | ) |  |  | (346.6 | ) |  |  | 10.0 |  |  |  | (336.6 | )
Discontinued operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from discontinued operations, net of income taxes |  |  | (1.8 | ) |  |  | — |  |  |  | (1.8 | ) |  |  | (5.8 | ) |  |  | — |  |  |  | (5.8 | )
Net income (loss) |  | $ | (140.0 | ) |  | $ | (0.7 | ) |  | $ | (140.7 | ) |  | $ | (352.4 | ) |  | $ | 10.0 |  |  | $ | (342.4 | )
Income (loss) per common share - basic and diluted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | (1.00 | ) |  | $ | (0.01 | ) |  | $ | (1.01 | ) |  | $ | (2.52 | ) |  | $ | 0.07 |  |  | $ | (2.45 | )
Loss from discontinued operations |  |  | (0.01 | ) |  |  | — |  |  |  | (0.01 | ) |  |  | (0.04 | ) |  |  | — |  |  |  | (0.04 | )
Income (loss) per common share |  | $ | (1.01 | ) |  | $ | (0.01 | ) |  | $ | (1.02 | ) |  | $ | (2.56 | ) |  | $ | 0.07 |  |  | $ | (2.49 | )

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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22644-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22658-107794 + Details
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