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Net Income Per Share | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Net Income Per Share | NET INCOME PER SHARE Basic net income per share is computed by dividing net income by the weighted-average shares outstanding during the reporting period. Diluted net income per share is computed by dividing net income by the combination of the weighted-average shares outstanding during the reporting period and all potentially dilutive common shares. Potentially dilutive common shares include stock options and RSAs issued under the Corporation's share-based compensation plans. Potentially dilutive common shares are excluded from the computation of diluted earnings per share in the periods where the effect would be antidilutive. The following table reconciles basic and diluted net income per share for the three months ended March 31, 2021 and 2020.
| Three Months Ended March 31,
| 2021 |  | 2020
| Net Income |  | Weighted-Average Shares |  | Per Share Amount |  | Net Income |  | Weighted-Average Shares |  | Per Share Amount
Net income available to common stockholders | $ | 49,469 |  |  | 53,930,200 |  |  | $ | 0.92 |  |  | $ | 34,263 |  |  | 54,732,073 |  |  | $ | 0.63 |
Effect of potentially dilutive stock options and restricted stock awards |  |  | 203,422 |  |  |  |  |  |  | 185,687 |  |  |
Diluted net income per share | $ | 49,469 |  |  | 54,133,622 |  |  | $ | 0.91 |  |  | $ | 34,263 |  |  | 54,917,760 |  |  | $ | 0.62 |
For the three months ended March 31, 2021 and 2020, there were no stock options with an option price greater than the average market price of the common shares.

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