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Earnings Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share |
Earnings Per Share | Note 19. Earnings Per Share ​ Basic earnings per share is computed by dividing net income for the period by the weighted average number of common shares outstanding, which include deferred stock units that are vested but not delivered. Diluted earnings per common share is computed using the treasury stock method and reflects the potential dilution that could occur if the Company’s outstanding stock options and warrants were exercised and restricted stock units were vested. ​ Earnings per common share have been computed as follows (dollars in thousands, except per share data): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ | 2020 |  | 2019 |  | 2018
Net income | ​ | $ | 100,344 | ​ | $ | 102,953 | ​ | $ | 98,928
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Shares: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 54,567,429 | ​ |  | 54,851,652 | ​ |  | 48,854,330
Dilutive effect of outstanding options, warrants, and restricted stock units as determined by the application of the treasury stock method | ​ |  | 259,510 | ​ |  | 280,842 | ​ |  | 361,125
Weighted average common shares outstanding, as adjusted for diluted earnings per share calculation | ​ |  | 54,826,939 | ​ |  | 55,132,494 | ​ |  | 49,215,455
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic earnings per common share | ​ | $ | 1.84 | ​ | $ | 1.88 | ​ | $ | 2.02
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted earnings per common share | ​ | $ | 1.83 | ​ | $ | 1.87 | ​ | $ | 2.01
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common stock equivalents excluded from the earning per common share calculations because their effect would have been anti-dilutive | ​ | ​ | 206,355 | ​ | ​ | 201,029 | ​ | ​ | 363,849
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