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Significant accounting judgments, estimates and assumptions (Details) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Significant accounting judgments, estimates and assumptions      
Tax loss carry-forwards used $ 1,944,922 $ 0 $ 214,460
Impairment loss   $ 0