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22. EARNINGS (LOSS) PER SHARE (Details 1) - BRL (R$)
R$ / shares in Units, R$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Discontinued operations - Basic numerator      
Net (loss) for the exercise attributable to controlling shareholders   R$ (904,628) R$ (2,333,093)
Discontinued operations - Basic denominator      
Common shares   812,473,246 812,473,246
Weighted average number of outstanding shares - basic (except treasury shares) 809,110,872 811,539,167 811,294,251
Net (loss) per share basic - R$ R$ (1.11) R$ (2.88)
Discontinued operations - Diluted numerator      
Net (loss) for the exercise attributable to controlling shareholders   R$ (904,628) R$ (2,333,093)
Discontinued operations - Diluted denominator      
Weighted average number of outstanding shares - basic (except treasury shares)   811,539,167 811,294,251
Weighted average number of outstanding shares - diluted 809,110,872 811,539,167 811,294,251
Net (loss) per share diluted - R$ R$ (1.11) R$ (2.88)