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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2025
EARNINGS PER SHARE |
Schedule of computation of basic and diluted earnings per share | The following table sets forth the computation of basic and diluted earnings per share: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ ​ ​ | 2025 | ​ ​ ​ | 2024 | ​ ​ ​ | 2023
Numerator: |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Net income | ​ | $ | 520,533 | ​ | $ | 466,108 | ​ | $ | 545,248
Denominator (shares in 000's): | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Basic weighted average shares outstanding | ​ |  | 55,410 | ​ |  | 56,639 | ​ |  | 57,364
Effect of dilutive securities - Stock options and awards | ​ |  | 465 | ​ |  | 555 | ​ |  | 857
Diluted weighted average shares outstanding | ​ |  | 55,875 | ​ |  | 57,194 | ​ |  | 58,221
Basic earnings per share | ​ | $ | 9.39 | ​ | $ | 8.23 | ​ | $ | 9.50
Diluted earnings per share | ​ | $ | 9.32 | ​ | $ | 8.15 | ​ | $ | 9.37

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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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