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Earnings Per Share | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The amounts used in computing earnings per share and the weighted average number of shares of potentially dilutive securities are as follows:
(in thousands, except market price and earnings per share) |  | 2022 |  | 2021 |  | 2020
Net income attributable to the Company |  | $ | 95,762 |  |  | $ | 118,478 |  |  | $ | 98,589 |
Weighted average number of shares: |  |  |  |  |  |
Weighted average number of shares used in calculating basic net income per share |  | 31,339 |  |  | 32,348 |  |  | 32,329 |
Effect of dilutive stock-based compensation plans: |  |  |  |  |  |
Stock options |  | — |  |  | 2 |  |  | 7 |
Long-term incentive plans |  | 116 |  |  | 113 |  |  | 20 |
Weighted average number of shares used in calculating diluted net income per share |  | 31,455 |  |  | 32,463 |  |  | 32,356 |
Average market price of common stock used for calculation of dilutive shares |  | $ | 87.27 |  |  | $ | 82.88 |  |  | $ | 58.56 |
Net income per share: |  |  |  |  |  |
Basic |  | $ | 3.06 |  |  | $ | 3.66 |  |  | $ | 3.05 |
Diluted |  | $ | 3.04 |  |  | $ | 3.65 |  |  | $ | 3.05 |
Shares outstanding, net of treasury shares, were 31.1 million as of December 31, 2022, 32.1 million as of December 31, 2021, and 32.3 million as of December 31, 2020.

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