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Retained Earnings and Accumulated Other Comprehensive Income - Retained Earnings (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Balance at beginning | $ 82,652,278 |  |
Recognized share of income in OCEN (see Note 10) | 147,975 |  |
Acquisition of non-controlling interests |  |  | $ (222,190)
Dividends paid |  | $ (2,664,340) | (2,345,430)
Sale of repurchased shares | 111,979 | 100,246 | 1,954,312
Share-based compensation | 962,806 | 1,108,094 | 1,305,999
Net income for the year | 302,824 | 6,106,813 | 7,615,270
Balance at ending | 84,280,397 | 82,652,278 |
Adoption of IFRS 9 - Expected credit losses |  |  |
Cumulative adjustment for IFRS |  |  | (202,464)
Adoption of IFRS 15 |  |  |
Cumulative adjustment for IFRS |  |  | 2,384,655
Retained Earnings |  |  |
Balance at beginning | 82,652,278 | 78,731,909 |
Recognized share of income in OCEN (see Note 10) | 147,975 |  |
Acquisition of non-controlling interests |  | 766 | (183,041)
Dividends paid |  | (1,066,187) | (1,068,868)
Net gain on partial disposition of Open Ended Fund |  | 837,520 |
Sale of repurchased shares | (997,174) | (1,585,963) | (446,542)
Cancellation of sale of shares | 2,764,854 |  |
Share-based compensation | 962,806 | 1,108,094 | 1,305,999
Net income for the year | (1,250,342) | 4,626,139 |
Balance at ending | 84,280,397 | 82,652,278 | 78,731,909
Retained Earnings | Adoption of IFRS 9 - Expected credit losses |  |  |
Cumulative adjustment for IFRS |  |  | (167,028)
Retained Earnings | Adoption of IFRS 9 - New classification of Financial Instruments |  |  |
Cumulative adjustment for IFRS |  |  | (827,932)
Retained Earnings | Adoption of IFRS 15 |  |  |
Cumulative adjustment for IFRS |  |  | 1,599,452
Legal Reserve |  |  |
Balance at beginning | 2,139,007 | 2,139,007 |
Balance at ending | 2,139,007 | 2,139,007 | 2,139,007
Unappropriated Earnings |  |  |
Balance at beginning | 75,887,132 | 70,583,488 |
Appropriation of net income | 4,626,139 | 6,009,414 |
Recognized share of income in OCEN (see Note 10) | 147,975 |  |
Acquisition of non-controlling interests |  | 766 |
Dividends paid |  | (1,066,187) |
Net gain on partial disposition of Open Ended Fund |  | 837,520 |
Sale of repurchased shares | (997,174) | (1,585,963) |
Cancellation of sale of shares | 2,764,854 |  |
Share-based compensation | 962,806 | 1,108,094 |
Balance at ending | 83,391,732 | 75,887,132 | 70,583,488
Net Income for the Year |  |  |
Balance at beginning | 4,626,139 | 6,009,414 |
Appropriation of net income | (4,626,139) | (6,009,414) |
Net income for the year | (1,250,342) | 4,626,139 |
Balance at ending | $ (1,250,342) | $ 4,626,139 | $ 6,009,414

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