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Earnings per Share | 9 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | The table below presents a reconciliation between basic and diluted weighted average shares outstanding, net income, and basic and diluted income per common share for the three and nine months ended September 30, 2023 and 2022:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
(In thousands, except per common share amounts) | 2023 |  | 2022 |  | 2023 |  | 2022
NUMERATOR |  |  |  |  |  |  |
Net income | $ | 139,016 |  |  | $ | 131,590 |  |  | $ | 360,083 |  |  | $ | 360,267 |
DENOMINATOR |  |  |  |  |  |  |
Basic weighted average shares outstanding | 27,909 |  |  | 27,618 |  |  | 27,769 |  |  | 28,025 |
Effect of dilutive securities: |  |  |  |  |  |  |
Stock option awards | 638 |  |  | 248 |  |  | 552 |  |  | 274 |
Deferred compensation awards | 290 |  |  | 319 |  |  | 310 |  |  | 311 |
Diluted weighted average shares outstanding | 28,837 |  |  | 28,185 |  |  | 28,631 |  |  | 28,610 |
Earnings per common share: |  |  |  |  |  |  |
Basic | $ | 4.98 |  |  | $ | 4.76 |  |  | $ | 12.97 |  |  | $ | 12.86 |
Diluted | $ | 4.82 |  |  | $ | 4.67 |  |  | $ | 12.58 |  |  | $ | 12.59 |
Anti-dilutive equity awards not included in the calculation of diluted earnings per common share | — |  |  | 908 |  |  | — |  |  | 826 |

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