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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2025
EARNINGS PER SHARE |
Schedule of reconciliation of basic to diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
(000’s omitted, except per share data) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Net income | ​ | $ | 51,331 | ​ | $ | 47,915 | ​ | $ | 100,945 | ​ | $ | 88,787
Income attributable to unvested stock-based compensation awards | ​ |  | (240) | ​ |  | (169) | ​ |  | (431) | ​ |  | (276)
Income available to common shareholders | ​ | $ | 51,091 | ​ | $ | 47,746 | ​ | $ | 100,514 | ​ | $ | 88,511
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding – basic | ​ |  | 52,785 | ​ |  | 52,674 | ​ |  | 52,745 | ​ |  | 52,951
Basic earnings per share | ​ | $ | 0.97 | ​ | $ | 0.91 | ​ | $ | 1.91 | ​ | $ | 1.67
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 51,331 | ​ | $ | 47,915 | ​ | $ | 100,945 | ​ | $ | 88,787
Income attributable to unvested stock-based compensation awards | ​ |  | (240) | ​ |  | (169) | ​ |  | (431) | ​ |  | (276)
Income available to common shareholders | ​ | $ | 51,091 | ​ | $ | 47,746 | ​ | $ | 100,514 | ​ | $ | 88,511
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding – basic | ​ |  | 52,785 | ​ |  | 52,674 | ​ |  | 52,745 | ​ |  | 52,951
Assumed exercise of stock options | ​ |  | 84 | ​ |  | 75 | ​ |  | 132 | ​ |  | 84
Weighted-average common shares outstanding – diluted | ​ |  | 52,869 | ​ |  | 52,749 | ​ |  | 52,877 | ​ |  | 53,035
Diluted earnings per share | ​ | $ | 0.97 | ​ | $ | 0.91 | ​ | $ | 1.90 | ​ | $ | 1.67

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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