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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2019
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, | ​
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018 | ​
Net income | ​ | $ | 24,085 | ​ | $ | 24,862 | ​ | $ | 49,554 | ​ | $ | 46,779 | ​
Shares: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 55,638 | ​ |  | 48,815 | ​ |  | 54,464 | ​ |  | 48,796 | ​
Dilutive effect of outstanding options, warrants and restricted stock units as determined by the application of the treasury stock method | ​ |  | 303 | ​ |  | 409 | ​ |  | 300 | ​ |  | 407 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding, as adjusted for diluted earnings per share calculation | ​ |  | 55,941 | ​ |  | 49,224 | ​ |  | 54,764 | ​ |  | 49,203 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic earnings per common share | ​ | $ | 0.43 | ​ | $ | 0.51 | ​ | $ | 0.91 | ​ | $ | 0.96 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted earnings per common share | ​ | $ | 0.43 | ​ | $ | 0.51 | ​ | $ | 0.90 | ​ | $ | 0.95 | ​

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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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