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Schedule of earnings per share - basic and diluted (Details) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 4,952,573 | R$ 3,904,202 | R$ 1,989,946
Ordinary shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 1,899,620 | R$ 1,975,751 | R$ 1,007,102
Weighted average of shares | 1,176,755,935 | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.61429 | R$ 1.36229 | R$ 0.69440
Class A Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 5,908 | R$ 5,883 | R$ 2,809
Weighted average of shares | 3,171,194 | 3,268,067 | 3,273,682
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.86252 | R$ 1.80062 | R$ 0.85790
Class B Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 3,047,045 | R$ 1,922,568 | R$ 980,035
Weighted average of shares | 1,556,626,621 | 1,282,974,883 | 1,282,969,268
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.95747 | R$ 1.49852 | R$ 0.76388
Continuing Operations 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 3,767,197 | R$ 3,823,981 | R$ 2,078,267
Weighted average of shares | 2,736,553,750 | 2,736,553,750 | 2,736,553,750
Continuing Operations 1 [Member] | Ordinary shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 1,417,379 | R$ 1,935,144 | R$ 1,051,809
Weighted average of shares | 1,176,755,935 | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.20448 | R$ 1.33430 | R$ 0.72523
Continuing Operations 1 [Member] | Class A Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 4,478 | R$ 5,783 | R$ 2,920
Weighted average of shares | 3,171,194 | 3,268,067 | 3,273,682
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.41173 | R$ 1.76982 | R$ 0.89086
Continuing Operations 1 [Member] | Class B Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 2,345,340 | R$ 1,883,054 | R$ 1,023,538
Weighted average of shares | 1,556,626,621 | 1,282,974,883 | 1,282,969,268
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.50668 | R$ 1.46773 | R$ 0.79778
Discontinued operations [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 1,185,376 | R$ 80,221 | R$ (88,321)
Weighted average of shares | 2,736,553,750 | 2,736,553,750 | 2,736,553,750
Discontinued operations [member] | Ordinary shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 482,241 | R$ 40,607 | R$ (44,707)
Weighted average of shares | 1,176,755,935 | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.40981 | R$ 0.02800 | R$ (0.03083)
Discontinued operations [member] | Class A Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 1,430 | R$ 100 | R$ (111)
Weighted average of shares | 3,171,194 | 3,268,067 | 3,273,682
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.45079 | R$ 0.03080 | R$ (0.03391)
Discontinued operations [member] | Class B Preferred Shares [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Basic and diluted earnings | R$ 701,705 | R$ 39,514 | R$ (43,503)
Weighted average of shares | 1,556,626,621 | 1,282,974,883 | 1,282,969,268
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.45079 | R$ 0.03080 | R$ (0.03391)

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