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22. Equity (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Equity Details 2 |  |  |
Profit for the year | R$ 2,519,310 | R$ 2,947,098 | R$ 536,279
Legal reserve | 125,965 | 147,355 | 26,814
Minimum mandatory dividends | 598,336 | 699,936 | 127,366
Additional proposed dividends | 105,543 | 123,557 | 22,527
Investment reserve recorded in 2017 | R$ 1,689,466 | R$ 1,976,250 | R$ 359,572

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