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Earnings Per Common Share | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Earnings Per Common Share | NOTE 2. EARNINGS PER COMMON SHARE Earnings per common share are calculated as follows:
|  | For the Years Ended December 31, |
(in thousands, except shares and per share amounts) |  | 2022 |  |  | 2021 |  |  | 2020 |
Numerator for both basic and diluted earnings per common share: |  |  |  |  |  |  |  |  |
Net income available to common shareholders |  | $ | 181,988 |  |  | $ | 232,135 |  |  | $ | 119,400 |
Denominator: |  |  |  |  |  |  |  |  |
Total average basic common shares outstanding |  |  | 60,047,177 |  |  |  | 65,520,527 |  |  |  | 67,260,796 |
Effect of dilutive stock options and other stock compensation |  |  | 168,197 |  |  |  | 149,443 |  |  |  | 49,788 |
Total diluted average common shares outstanding |  |  | 60,215,374 |  |  |  | 65,669,970 |  |  |  | 67,310,584 |
Earnings per common share—basic |  | $ | 3.03 |  |  | $ | 3.54 |  |  | $ | 1.78 |
Earnings per common share—diluted |  |  | 3.02 |  |  |  | 3.53 |  |  |  | 1.77 |
As of December 31, 2022, 2021 and 2020, respectively, 510,211, 412,131 and 497,540 options to purchase shares were excluded in the diluted shares computation because the exercise price was greater than the average market price of the common shares and, therefore, the effect would be antidilutive. As of December 31, 2022, contingently issuable shares totaling 53,280 were estimated to be awarded under the 2022, 2021 and 2020 total shareholder return plans as stock performance targets were met to date and were included in the diluted calculation. No shares were contingently issuable as of December 31, 2021 and 2020 because the performance criteria was not met at that time and the effect would be antidilutive. In addition, performance-based restricted stock compensation totaling 53,230 and 61,267 were estimated to be awarded as of December 31, 2022 and December 31, 2021 and are included in the calculation. No performance-based restricted stock compensation was estimated to be awarded at December 31, 2020.

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