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STOCKHOLDERS' EQUITY: - Dividends paid in common stock (Details) $ / shares in Units, $ in Millions |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 04, 2025 USD ($) shares | May 19, 2025 USD ($) shares | Feb. 27, 2025 USD ($) shares | Sep. 30, 2025 $ / shares shares | Sep. 30, 2024 $ / shares | Dec. 31, 2024 shares
Stock dividend activity |  |  |  |  |  |
Dividends paid as cash dividend (in dollars per share) | $ / shares |  |  |  | $ 2.2 | $ 1.4 |
Reduction of shares in treasury stock | 8,120,705 |  |  |  |  |
Parent Company (Grupo Mexico) common shares |  |  |  |  |  |
Stock dividend activity |  |  |  |  |  |
Dividends paid in share (in shares per share) | 0.0101 | 0.0099 | 0.0073 |  |  |
Reduction of shares in treasury stock |  | 7,881,820 | 5,769,600 |  |  |
Treasury stock retired amount | $ | $ 201.5 | $ 195.6 | $ 143.2 |  |  |
Treasury stock balance at the end of the period (in shares) |  |  |  | 72,404,256 |  | 94,185,981

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