XML 179 R139.htm IDEA: XBRL DOCUMENT
v3.20.1

Stockholders' equity - Additional Information (Detail) - R$ / shares | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of classes of share capital [line items] |  |  |
Total share capital | 9,804,135,348 | 9,804,135,348 | 6,550,514,438
Number of common stock | 4,958,290,359 |  |
Number of preferred stock | 4,845,844,989 |  |
Cancellation of Shares | 14,424,206 | 14,424,206 |
Percentage of stock split approved | 50 |  |
Annual minimum priority dividend | R$ 0.015 |  |
Bottom of range [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Annual mandatory dividend rate | 25.00% |  |
Preference shares [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Total share capital | 4,845,844,989 | 4,845,844,989 | 3,230,563,326
Annual minimum priority dividend | R$ 0.022 |  |

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