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Shareholders' Equity - Additional Information (Detail) - MXN ($) $ / shares in Units, $ in Thousands |  |  |  |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 13, 2023 | Jul. 17, 2023 | Apr. 27, 2023 | Apr. 20, 2022 | Sep. 30, 2023 | Dec. 31, 2022
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Capital requirements |  |  |  |  | $ 238,749 |
Number of shares issued |  |  |  |  | 63,220,260,000 |
Number of shares outstanding |  |  |  |  |  | 63,325,000,000
Number of treasury shares held |  |  |  |  | 341,260,000 | 56,000,000
Dividends paid |  |  | $ 0.46 |  |  |
Periodic payment of dividend | $ 0.23 | $ 0.23 |  |  |  |
Legal reserve |  |  |  |  | $ 358,440 | $ 358,440
Amount of Mexican withholding tax |  |  |  |  | 10.00% |
Legal reserve [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Legal reserve as a percentage of capital stock |  |  |  |  | 20.00% |
Bottom of range [member] | Legal reserve [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Percentage of net profit to be allocated to legal reserve |  |  |  |  | 5.00% |
Capital Stock Class Aa [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Number of shares outstanding |  |  |  |  | 20,554,697,460 | 20,554,697,460
Dividends paid |  |  |  | $ 0.44 |  |
Capital Stock Class A [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Number of shares outstanding |  |  |  |  | 488,283,894 | 488,283,894
Dividends paid |  |  |  | 0.44 |  |
Capital Stock Class L [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Number of shares outstanding |  |  |  |  | 42,282,018,646 | 42,282,018,646
Dividends paid |  |  |  | $ 0.44 |  |
Capital Stock Class B [Member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Number of shares outstanding |  |  |  |  | 62,879,000,000 |

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