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Shareholders' Equity and Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Shareholders' Equity and Earnings Per Share |
Schedule of reconciliation of factors used in computing basic and diluted earnings per common share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
​ | ​ | Year Ended December 31, | ​
​ |  | 2020 |  | 2019 |  | 2018 | ​
​ | ​ | (Dollars in thousands, except per share amounts) |
Net income | ​ | $ | 35,299 | ​ | $ | 40,461 | ​ | $ | $ 35,331 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding for basic | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
earnings per common share | ​ |  | 59,478,343 | ​ |  | 46,684,384 | ​ |  | 41,469,211 | ​
Dilutive potential common shares | ​ |  | 690,796 | ​ |  | 1,221,845 | ​ |  | 713,728 | ​
Shares used in computing diluted earnings per common share | ​ |  | 60,169,139 | ​ |  | 47,906,229 | ​ |  | 42,182,939 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic earnings per share | ​ | $ | 0.59 | ​ | $ | 0.87 | ​ | $ | 0.85 | ​
Diluted earnings per share | ​ | $ | 0.59 | ​ | $ | 0.84 | ​ | $ | 0.84 | ​

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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=6371337&loc=d3e3550-109257 + Details
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