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Depreciation and amortization (Tables)
 12 Months Ended
Dec. 31, 2019
Disclosure Of Depreciation And Amortization Expense [Abstract]  
Summary of Depreciation and Amortization

Depreciation and amortization for the years ended December 31, 2017, 2018 and 2019 were comprised of the following:

 

 

 

2017

 

 

2018

 

 

2019

 

Depreciation

 

Ps.

 

324,460

 

 

Ps.

 

400,205

 

 

Ps.

 

446,517

 

Amortization

 

 

 

1,119,102

 

 

 

 

1,169,432

 

 

 

 

1,329,620

 

 

 

Ps.

 

1,443,562

 

 

Ps.

 

1,569,637

 

 

Ps.

 

1,776,137