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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share |
Computation of basic and diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Year Ended
​ | ​ | December 31,
​ |  | 2023 |  | 2022 |  | 2021
Numerator (basic and diluted): |  | ​ |  |  | ​ |  |  | ​ |
Net income | ​ | $ | 2,346,581 | ​ | $ | 2,172,650 | ​ | $ | 2,164,685
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: | ​ |  |  | ​ |  |  | ​ |  |
Weighted-average common shares outstanding – basic | ​ |  | 60,475 | ​ |  | 64,372 | ​ |  | 68,967
Effect of stock options (1) | ​ |  | 523 | ​ |  | 590 | ​ |  | 644
Weighted-average common shares outstanding – assuming dilution | ​ |  | 60,998 | ​ |  | 64,962 | ​ |  | 69,611
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Earnings per share: | ​ |  |  | ​ |  |  | ​ |  |
Earnings per share-basic | ​ | $ | 38.80 | ​ | $ | 33.75 | ​ | $ | 31.39
Earnings per share-assuming dilution | ​ | $ | 38.47 | ​ | $ | 33.44 | ​ | $ | 31.10
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Antidilutive potential common shares not included in the calculation of diluted earnings per share: | ​ |  |  | ​ |  |  | ​ |  |
Stock options (1) | ​ |  | 95 | ​ |  | 144 | ​ |  | 111
Weighted-average exercise price per share of antidilutive stock options (1) | ​ | $ | 836.12 | ​ | $ | 663.36 | ​ | $ | 479.90
(1) | See Note 13 for further information concerning the terms of the Company’s share-based compensation plans.

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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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