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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2020
EARNINGS PER SHARE. |
Schedule of computation of EPS | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
(In thousands, except per share data) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Net income | ​ | $ | 13,061 | ​ | $ | 13,903 | ​ | $ | 33,065 | ​ | $ | 37,483
Dividends paid on and earnings allocated to participating securities | ​ |  | (276) |  |  | (294) | ​ |  | (689) | ​ |  | (797)
Income attributable to common stock | ​ | $ | 12,785 | ​ | $ | 13,609 | ​ | $ | 32,376 | ​ | $ | 36,686
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding, including participating securities | ​ |  | 19,896 |  |  | 19,958 | ​ |  | 19,901 | ​ |  | 19,950
Weighted average participating securities | ​ |  | (423) |  |  | (422) | ​ |  | (415) | ​ |  | (425)
Weighted average common shares outstanding | ​ |  | 19,473 |  |  | 19,536 | ​ |  | 19,486 | ​ |  | 19,525
Basic earnings per common share | ​ | $ | 0.66 | ​ | $ | 0.70 | ​ | $ | 1.66 | ​ | $ | 1.88
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income attributable to common stock | ​ | $ | 12,785 | ​ | $ | 13,609 | ​ | $ | 32,376 | ​ | $ | 36,686
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 19,473 |  |  | 19,536 | ​ |  | 19,486 | ​ |  | 19,525
Incremental shares from assumed conversions of options and restricted stock units | ​ |  | 41 |  |  | 32 | ​ |  | 36 | ​ |  | 27
Weighted average common and equivalent shares outstanding | ​ |  | 19,514 |  |  | 19,568 | ​ |  | 19,522 | ​ |  | 19,552
Diluted earnings per common share | ​ | $ | 0.66 | ​ | $ | 0.70 | ​ | $ | 1.66 | ​ | $ | 1.88

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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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