Government Bonds, And Other Assets - Summary of Roll forward of the Mexican Bonds (Detail) - Mexican Bonds - Mexican Government - MXN ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Disclosure of Roll Forward Related to the Promissory Notes [Roll Forward] | ||
| Balance as of the beginning of the year | $ 35,875,353 | $ 64,132,418 |
| Government Bonds collected | (3,586,058) | (3,579,085) |
| Accrued interests | 620,211 | 1,407,533 |
| Interests received from bonds | (980,870) | (1,928,811) |
| Amortized cost | 348,609 | 469,059 |
| Reversal of impairment of bonds | 1,690 | 0 |
| Balance at the end of the period | $ 32,278,935 | $ 60,501,114 |