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v3.19.1

Description of the business and summary of significant accounting policies - Employee benefits (Details) |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 06, 2014 | Apr. 30, 2018 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($)
Share-based payments |  |  |  |  |  |
Termination benefits provision |  |  |  | $ 0 | $ 0 | $ 0
Number of days' wages for each year of service provided as seniority premium benefits |  |  | 12 days | 12 days |  |
Minimum years of service to receive seniority premium benefits |  |  | 15 years | 15 years |  |
Salaries and benefits |  |  | $ 158,787,000 | $ 3,125,393,000 | 2,823,647,000 | 2,419,537,000
Quarterly incentive bonuses |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  | 67,680,000 | 48,384,000 | 40,829,000
Short-term benefit plan for certain key personnel |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  | 50,000,000 | 0 | 53,738,000
Restricted Stock Units |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  | 19,980,000 | 13,508,000 | 7,816,000
SARs - cash settled |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  |  |  | $ 31,743,000
Salaries and benefits |  |  |  | $ (186,000) | $ (8,999,000) |
Vesting period | 3 years |  | 3 years | 3 years | 3 years | 3 years
MIP I |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Exercise price |  |  |  | $ 5.31 | $ 5.31 | $ 5.31
MIP II |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  |  |  | 54,357,000
Salaries and benefits |  |  |  | $ (5,052,000) | (16,499,000) |
Vesting period |  |  | 5 years | 5 years |  |
BODIP |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Vesting period |  | 4 years |  |  |  |
Exercise price |  | $ 16.12 |  | $ 16.12 | 26.29 |
Employee profit sharing |  |  |  |  |  |
Share-based payments |  |  |  |  |  |
Salaries and benefits |  |  |  | $ 14,106,000 | $ 8,342,000 | $ 9,967,000

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