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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 factors used in the earnings per share computation follow:
| Year Ended December 31,
(Dollars in thousands) | 2022 |  | 2021 |  | 2020
Basic |  |  |  |  |
Net income to common stockholders | $ | 99,105 |  |  | $ | 109,768 |  |  | $ | 62,323 |
Weighted average common shares outstanding | 24,393,954 |  |  | 24,736,713 |  |  | 24,387,932 |
Basic earnings per common share | $ | 4.06 |  |  | $ | 4.44 |  |  | $ | 2.56 |
Diluted |  |  |  |  |
Net income to common stockholders | $ | 99,105 |  |  | $ | 109,768 |  |  | $ | 62,323 |
Weighted average common shares outstanding | 24,393,954 |  |  | 24,736,713 |  |  | 24,387,932 |
Dilutive effects of: |  |  |  |  |
Assumed exercises of stock options | 90,841 |  |  | 130,198 |  |  | 64,104 |
Restricted stock awards | 148,630 |  |  | 170,276 |  |  | 86,498 |
Restricted stock units | 98,139 |  |  | 76,049 |  |  | 25,978 |
Performance stock units - market based | 122,123 |  |  | 136,199 |  |  | 51,304 |
Performance stock units - performance based | 167,187 |  |  | — |  |  | — |
Employee stock purchase plan | 2,694 |  |  | 2,617 |  |  | — |
Average shares and dilutive potential common shares | 25,023,568 |  |  | 25,252,052 |  |  | 24,615,816 |
Diluted earnings per common share | $ | 3.96 |  |  | $ | 4.35 |  |  | $ | 2.53 |
Shares that were not considered in computing diluted earnings per common share because they were antidilutive or have not met the thresholds to be considered in the dilutive calculation are as follows:
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Stock options | 49,379 |  |  | 16,939 |  |  | 64,947 |
Restricted stock awards | 6,348 |  |  | 8,463 |  |  | — |
Restricted stock units | 11,250 |  |  | 15,000 |  |  | — |
Performance stock units - market based | 45,296 |  |  | — |  |  | — |
Performance stock units - performance based | — |  |  | 259,383 |  |  | 256,625 |
Employee stock purchase plan | — |  |  | — |  |  | — |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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