XML 132 R118.htm IDEA: XBRL DOCUMENT v3.21.1
Income Taxes - Summary of Deferred Income Tax from Tax Loss Carryforwards (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure Of Tax Loss Carryforwards [Abstract]      
Tax loss carryforwards $ 1,340,729 $ 1,070,673 $ 1,162,441
Unrecognized tax loss carryforwards (1,021,106) (899,659) (784,917)
Recognized tax loss carryforwards $ 319,623 $ 171,014 $ 377,524