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EARNINGS PER SHARE | 9 Months Ended
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Sep. 30, 2021
EARNINGS PER SHARE |
EARNINGS PER SHARE | NOTE I: EARNINGS PER SHARE The two class method is used in the calculations of basic and diluted earnings per share. Under the two class method, earnings available to common shareholders for the period are allocated between common shareholders and participating securities according to dividends declared and participation rights in undistributed earnings. The Company has determined that all of its outstanding non-vested stock awards are participating securities as of September 30, 2021. Basic earnings per share are computed based on the weighted-average of the common shares outstanding for the period. Diluted earnings per share are based on the weighted-average of the shares outstanding and the assumed exercise of stock options during the year. The dilutive effect of options is calculated using the treasury stock method of accounting. The treasury stock method determines the number of common shares that would be outstanding if all the dilutive options were exercised and the proceeds were used to repurchase common shares in the open market at the average market price for the applicable time period. There were approximately 0.2 million and 0.1 million weighted-average anti-dilutive stock options outstanding for the three months and nine months ended September 30, 2021, respectively, compared to 0.5 million and 0.7 million weighted-average anti-dilutive stock options outstanding for the three months and nine months ended September 30, 2020, respectively, that were not included in the computation below. The following is a reconciliation of basic to diluted earnings per share for the three and nine months ended September 30, 2021 and 2020: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
(000’s omitted, except per share data) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income | ​ | $ | 45,336 | ​ | $ | 42,809 | ​ | $ | 146,130 | ​ | $ | 118,191
Income attributable to unvested stock-based compensation awards | ​ |  | (110) | ​ |  | (147) | ​ |  | (340) | ​ |  | (432)
Income available to common shareholders | ​ | $ | 45,226 | ​ | $ | 42,662 | ​ | $ | 145,790 | ​ | $ | 117,759
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding – basic | ​ |  | 54,025 | ​ |  | 53,650 | ​ |  | 53,960 | ​ |  | 52,727
Basic earnings per share | ​ | $ | 0.84 | ​ | $ | 0.80 | ​ | $ | 2.70 | ​ | $ | 2.23
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 45,336 | ​ | $ | 42,809 | ​ | $ | 146,130 | ​ | $ | 118,191
Income attributable to unvested stock-based compensation awards | ​ |  | (110) | ​ |  | (147) | ​ |  | (340) | ​ |  | (432)
Income available to common shareholders | ​ | $ | 45,226 | ​ | $ | 42,662 | ​ | $ | 145,790 | ​ | $ | 117,759
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding – basic | ​ |  | 54,025 | ​ |  | 53,650 | ​ |  | 53,960 | ​ |  | 52,727
Assumed exercise of stock options | ​ |  | 385 | ​ |  | 324 | ​ |  | 431 | ​ |  | 356
Weighted-average common shares outstanding – diluted | ​ |  | 54,410 | ​ |  | 53,974 | ​ |  | 54,391 | ​ |  | 53,083
Diluted earnings per share | ​ | $ | 0.83 | ​ | $ | 0.79 | ​ | $ | 2.68 | ​ | $ | 2.22
​ Stock Repurchase Program At its December 2019 meeting, the Company’s Board of Directors (the “Board”) approved a stock repurchase program authorizing the repurchase of up to 2.60 million shares of the Company’s common stock in accordance with securities laws and regulations, through December 31, 2020. At its December 2020 meeting, the Board approved a similar program for 2021, authorizing the repurchase of up to 2.68 million shares of the Company’s common stock through December 31, 2021. Any repurchased shares will be used for general corporate purposes, including those related to stock plan activities. The timing and extent of repurchases will depend on market conditions and other corporate considerations as determined at the Company’s discretion. The Company did not repurchase any shares under the authorized plan during the first nine months of 2021 or 2020.

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