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Bonus Programs (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [abstract]  
Summary of Shares Granted Under the Company's Executive Incentive Plans
At December 31, 2020 the shares granted under the Company’s executive incentive plans are as follows:
 Number of shares
Incentive PlanFEMSAKOFVesting period
2016567,671719,1322017-2019
2017326,561369,7912018-2020
2018211,290256,2812019-2021
2019312,006457,3382020-2022
2020666,281956,9262021-2023
Total2,083,8092,759,468