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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share |
Schedule of computation of earnings per common share | 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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- 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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