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Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table sets forth the computation of basic and diluted earnings per share:
Dollar and share amounts in millions, except per share amounts | Quarter Ended June 30, |  | Six Months Ended June 30,
2013 |  | 2012 |  | 2013 |  | 2012
Numerator: |  |  |  |  |  |  |
Income (loss) attributed to LP common shares: |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 94.2 |  |  | $ | (37.2 | ) |  | $ | 159.6 |  |  | $ | (48.4 | )
Loss from discontinued operations | (0.1 | ) |  | (0.1 | ) |  | (0.2 | ) |  | (0.2 | )
Net income (loss) | $ | 94.1 |  |  | $ | (37.3 | ) |  | $ | 159.4 |  |  | $ | (48.6 | )
Denominator: |  |  |  |  |  |  |
Basic - weighted average common shares outstanding | 139.1 |  |  | 137.0 |  |  | 138.8 |  |  | 136.8 |
Dilutive effect of stock warrants | 2.7 |  |  | — |  |  | 2.9 |  |  | — |
Dilutive effect of stock plans | 2.3 |  |  | — |  |  | 2.6 |  |  | — |
Diluted shares outstanding | 144.1 |  |  | 137.0 |  |  | 144.3 |  |  | 136.8 |
Basic earnings per share: |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 0.68 |  |  | $ | (0.27 | ) |  | $ | 1.15 |  |  | $ | (0.35 | )
Loss from discontinued operations | — |  |  | — |  |  | — |  |  | — |
Net income (loss) per share | $ | 0.68 |  |  | $ | (0.27 | ) |  | $ | 1.15 |  |  | $ | (0.35 | )
Diluted earnings per share: |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 0.65 |  |  | $ | (0.27 | ) |  | $ | 1.10 |  |  | $ | (0.35 | )
Loss from discontinued operations | — |  |  | — |  |  | — |  |  | — |
Net income (loss) per share | $ | 0.65 |  |  | $ | (0.27 | ) |  | $ | 1.10 |  |  | $ | (0.35 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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