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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Common Share |
Schedule of computation of earnings per common share | Earnings per common share have been computed as follows (in thousands, except per share data): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Net income | ​ | $ | 25,806 | ​ | $ | 24,085 | ​ | $ | 41,170 | ​ | $ | 49,554
Shares: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 54,489 | ​ |  | 55,638 | ​ |  | 54,576 | ​ |  | 54,464
Dilutive effect of outstanding options, warrants and restricted stock units as determined by the application of the treasury stock method | ​ |  | 216 | ​ |  | 303 | ​ |  | 231 | ​ |  | 300
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding, as adjusted for diluted earnings per share calculation | ​ |  | 54,705 | ​ |  | 55,941 | ​ |  | 54,807 | ​ |  | 54,764
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic earnings per common share | ​ | $ | 0.47 | ​ | $ | 0.43 | ​ | $ | 0.75 | ​ | $ | 0.91
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted earnings per common share | ​ | $ | 0.47 | ​ | $ | 0.43 | ​ | $ | 0.75 | ​ | $ | 0.90

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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