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Net Income Per Common Share Computations | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Net Income Per Common Share Computations | NET INCOME PER COMMON SHARE COMPUTATIONSThe following is a reconciliation of the numerator and denominator of the net income per common share computations:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions, except per share data) | 2022 |  | 2021 |  | 2022 |  | 2021
Numerator for basic and diluted net income per common share: |  |  |  |  |  |  |
Net income | $ | 57.0 |  |  | $ | 61.4 |  |  | $ | 438.4 |  |  | $ | 205.8 |
Denominator for net income per common share: |  |  |  |  |  |  |
Basic | 37.8 |  |  | 38.6 |  |  | 38.1 |  |  | 38.7 |
Plus dilutive effect of stock awards | 0.6 |  |  | 0.6 |  |  | 0.5 |  |  | 0.6 |
Diluted | 38.4 |  |  | 39.2 |  |  | 38.6 |  |  | 39.3 |
Net income per common share data: |  |  |  |  |  |  |
Basic net income | $ | 1.51 |  |  | $ | 1.59 |  |  | $ | 11.52 |  |  | $ | 5.31 |
Diluted net income | $ | 1.49 |  |  | $ | 1.57 |  |  | $ | 11.36 |  |  | $ | 5.23 |

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