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Net Income (Loss) Per Common Share Computations | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Net Income (Loss) Per Common Share Computations | NET INCOME (LOSS) PER COMMON SHARE COMPUTATIONS The following is a reconciliation of the numerator and denominator of the net income (loss) per common share computations:
| Years Ended December 31,
(in millions, except per share data) | 2022 |  | 2021 |  | 2020
Numerator for basic net income (loss) per common share: |  |  |  |  |
Net income from continuing operations | $ | 439.4 |  |  | $ | 249.1 |  |  | $ | 13.3 |
Net loss attributable to noncontrolling interest | — |  |  | — |  |  | (0.2) |
Net income from continuing operations, net of loss attributable to noncontrolling interests | 439.4 |  |  | 249.1 |  |  | 13.5 |
Net loss from discontinued operations | — |  |  | — |  |  | (95.4) |
Numerator for basic net income (loss) per common share | $ | 439.4 |  |  | $ | 249.1 |  |  | $ | (81.9) |
Numerator for diluted net income from continuing operations per common share | $ | 439.4 |  |  | $ | 249.1 |  |  | $ | 13.5 |
Numerator for diluted net income (loss) per common share | $ | 439.4 |  |  | $ | 249.1 |  |  | $ | (81.9) |
Denominator for net income (loss) per common share: |  |  |  |  |
Basic | 37.9 |  |  | 38.6 |  |  | 39.6 |
Plus dilutive effect of stock awards | 0.6 |  |  | 0.6 |  |  | 0.5 |
Diluted | 38.5 |  |  | 39.2 |  |  | 40.1 |
Net income (loss) per common share data: |  |  |  |  |
Basic |  |  |  |  |
Continuing operations | $ | 11.58 |  |  | $ | 6.45 |  |  | $ | 0.34 |
Discontinued operations | — |  |  | — |  |  | (2.41) |
Net income (loss) per common share - basic | $ | 11.58 |  |  | $ | 6.45 |  |  | $ | (2.07) |
Diluted |  |  |  |  |
Continuing operations | $ | 11.42 |  |  | $ | 6.35 |  |  | $ | 0.33 |
Discontinued operations (1) | — |  |  | — |  |  | (2.41) |
Net income (loss) per common share - diluted | $ | 11.42 |  |  | $ | 6.35 |  |  | $ | (2.08) |
(1) Amounts exclude all potential common equivalent shares for periods when there is a net loss from discontinued operations.

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