v3.26.1
Post-employment Benefits - Plan assets (Details) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Post-employment benefit plans    
Minimum investment required (as a percent) 30.00%  
Weighted average asset allocation (as a percent) 100.00% 100.00%
Fair value of plan assets held by the trust $ 32,239 $ 21,236
Weighted average expected long-term rate of return of plan assets 9.31% 10.48%
Minimum    
Post-employment benefit plans    
Term for liquidity of mutual funds 1 day  
Maximum    
Post-employment benefit plans    
Term for liquidity of mutual funds 1 month  
Equity securities    
Post-employment benefit plans    
Target allocation (as a percent) 30.00%  
Weighted average asset allocation (as a percent) 24.00% 45.00%
Fixed rate instruments    
Post-employment benefit plans    
Target allocation (as a percent) 70.00%  
Weighted average asset allocation (as a percent) 76.00% 55.00%