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Components of other comprehensive loss (Tables)
 12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Summary of Movement on the Components of the Other Comprehensive Loss
The movement on the components of the other comprehensive (loss) income for the years ended December 31, 2018, 2019 and 2020 is as follows:
 
 
  
For the years ended December 31,
 
 
  
2018
 
 
2019
 
 
2020
 
Controlling interest:
  
   
 
   
 
   
Unrealized (loss) gain on equity investments at fair value, net of deferred taxes
  
 
(3,765,688
) 
 
 
883,408
 
 
 
(1,952,414
) 
Translation effect of foreign entities
  
 
(61,223,458
) 
 
 
(34,010,066
) 
 
 
(13,558,774
) 
Remeasurement of defined benefit plan, net of deferred taxes
  
 
652,722
 
 
 
(29,153,554
) 
 
 
(10,026,454
) 
Assets revaluation surplus net of deferred taxes
  
 
—  
 
 
 
—  
 
 
 
64,835,155
 
Non-controlling
 
interest of the items above
  
 
(2,986,018
) 
 
 
(1,908,304
) 
 
 
14,165,249
 
 
  
 
 
 
 
 
 
 
 
 
 
 
Other comprehensive (loss) income
  
 
Ps.(67,322,442
) 
 
 
Ps.(64,188,516
) 
 
 
Ps.53,462,762