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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2021
EARNINGS PER SHARE |
Schedule of computation of basic and diluted earnings (loss) per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2021 |  | 2020 |  | 2019 |
​ | ​ | (in thousands, except share and per share data) |
Basic | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 213,521 | ​ | $ | 71,100 | ​ | $ | 39,985 | ​
Effect of unvested restricted stock awards | ​ |  | — | ​ |  | — | ​ |  | (22) | ​
Adjusted net income | ​ | $ | 213,521 | ​ | $ | 71,100 | ​ | $ | 39,963 | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average shares | ​ |  | 25,471,939 | ​ |  | 25,410,232 | ​ |  | 25,535,529 | ​
Earnings per common share | ​ | $ | 8.38 | ​ | $ | 2.80 | ​ | $ | 1.56 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 213,521 | ​ | $ | 71,100 | ​ | $ | 39,985 | ​
Effect of unvested restricted stock awards | ​ |  | — | ​ |  | — | ​ |  | (21) | ​
Adjusted net income | ​ | $ | 213,521 | ​ | $ | 71,100 | ​ | $ | 39,964 | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average shares | ​ |  | 25,471,939 | ​ |  | 25,410,232 | ​ |  | 25,535,529 | ​
Effect of dilutive securities | ​ |  | 1,300,187 | ​ |  | 1,012,291 | ​ |  | 914,526 | ​
Adjusted weighted-average shares and assumed conversions | ​ |  | 26,772,126 | ​ |  | 26,422,523 | ​ |  | 26,450,055 | ​
Earnings per common share | ​ | $ | 7.98 | ​ | $ | 2.69 | ​ | $ | 1.51 | ​

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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