XML 150 R97.htm IDEA: XBRL DOCUMENT v3.20.1
Trade Accounts Receivable - Additional Information (Detail) - MXN ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure Of Trade Accounts Receivable [Abstract]      
Account receivable for passenger charger fees $ 979,037,000 $ 995,929,000 $ 644,142,000
Allowances for expected credit loss in customer balances 16,626,000 17,145,000 12,412,000
Allowances for doubtful accounts in arrears of payments 34,396,000 31,530,000 19,116,000
Allowances for doubtful accounts at reversal of bad debt 19,778,000 8,142,000 11,100,000
Allowance for doubtful accounts cancellations $ 0 $ 0 $ 0