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22. EARNINGS (LOSS) PER SHARE (Details) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Continued operations - Basic numerator |  |  |  |
Net earnings (loss) for the exercise attributable to controlling shareholders |  | R$ 1,518,492 | R$ 1,067,312 | R$ (2,114,968)
Continued operations - Basic denominator |  |  |  |
Common shares |  | 812,473,246 | 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 earnings (loss) per share basic - R$ |  | R$ 1.88 | R$ 1.32 | R$ (2.61)
Continued operations - Diluted numerator |  |  |  |
Net earnings (loss) for the exercise attributable to controlling shareholders |  | R$ 1,518,492 | R$ 1,067,312 | R$ (2,114,968)
Continued operations - Diluted denominator |  |  |  |
Weighted average number of outstanding shares - basic (except treasury shares) |  | 809,110,872 | 811,539,167 | 811,294,251
Number of potential shares | [1] | 2,237,936 | 2,327,952 |
Weighted average number of outstanding shares - diluted |  | 811,348,808 | 813,867,119 | 811,294,251
Net earnings (loss) per share diluted - R$ |  | R$ 1.87 | R$ 1.31 | R$ (2.61)
[1] | Comprised of the restricted stocks under the share-based payment plans for which the payment is made in equity instruments.

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