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Other accounts receivable, net - Movement in the allowance for doubtful accounts (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other accounts receivable, net      
Balance as of beginning of the year $ (32,708) $ (40,308) $ (11,304)
Write-offs 36,161 21,264 11,389
Increase in allowance (16,118) (13,664) (40,393)
Balance as of end of the year $ (12,665) $ (32,708) $ (40,308)