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Taxes (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning R$ 2,040,617 R$ 2,268,280
Noncurrent assets, recognized in income 728,875 (3,955)
Noncurrent assets, reclassification [1]   17,116
Noncurrent assets, ending 2,680,944 2,040,617
Noncurrent assets, recognized comprehensive income (88,548) (93,881)
Other [1]   (146,943)
Noncurrent liabilities, beginning 2,442,186 1,561,514
Noncurrent liabilities, recognized in income 100,486 786,451
Noncurrent liabilities,Other 8,155 [2] 94,221 [1]
Noncurrent liabilities, ending 2,554,327 2,442,186
Noncurrent liabilities recognized comprehensive income 3,500  
Net, beginning (401,569) 706,766
Net, recognized in income 628,389 (790,406)
Noncurrent liabilities,Other net (8,155) [2] (241,164) [1]
Net, reclassification [1]   17,116
Net, recognized comprehensive income (92,048) (93,881)
Net, ending 126,617 (401,569)
Assets presented in the Statement of Financial Position 963,259 1,011,866
Assets presented in the Statement of Financial Position 1,644,299 963,259
Liabilities presented in the Statement of Financial Position (1,364,828) (293,666)
Liabilities presented in the Statement of Financial Position (1,517,682) (1,364,828)
Legal proceedings provision [member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 504,461 499,375
Noncurrent assets, recognized in income 132,175 7,291
Noncurrent assets, reclassification [1]   (2,205)
Noncurrent assets, ending 636,636 504,461
Provision For Allocation Of P I S And Cofins Credits [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, recognized in income 629,427  
Noncurrent assets, ending 629,427  
Post Employment Benefits [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 429,260 507,032
Noncurrent assets, recognized in income 22,724 (766)
Noncurrent assets, reclassification [1]   16,875
Noncurrent assets, ending 363,436 429,260
Noncurrent assets, recognized comprehensive income (88,548) (93,881)
Impairment Of Assets [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 302,397 310,606
Noncurrent assets, recognized in income (17,486) (6,456)
Noncurrent assets, reclassification [1]   (1,753)
Noncurrent assets, ending 284,911 302,397
Tax Losses And Negative Tax Basis [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 123,010 215,389
Noncurrent assets, recognized in income 73,260 54,416
Noncurrent assets, reclassification [1]   1,210
Noncurrent assets, ending 196,270 123,010
Other [1]   (148,005)
Research And Development And Energy Efficiency Programs [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 138,849 152,498
Noncurrent assets, recognized in income (11,766) (13,649)
Noncurrent assets, ending 127,083 138,849
Allowance For Doubtful Account [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 98,712 123,182
Noncurrent assets, recognized in income (11,412) (21,476)
Noncurrent assets, reclassification [1]   (2,994)
Noncurrent assets, ending 87,300 98,712
Social Security Contributions Injunction On Judicial Deposit [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 74,743 70,992
Noncurrent assets, recognized in income 7,516 3,673
Noncurrent assets, reclassification [1]   78
Noncurrent assets, ending 82,259 74,743
Amortization Concession [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 52,429 47,209
Noncurrent assets, recognized in income 5,220 5,220
Noncurrent assets, ending 57,649 52,429
Provision For Performance And Profit Sharing [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 114,593 160,459
Noncurrent assets, recognized in income (100,957) (45,866)
Noncurrent assets, ending 13,636 114,593
Concession Contracts [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 19,769 21,061
Noncurrent assets, recognized in income (1,067) (1,292)
Noncurrent assets, ending 18,702 19,769
Noncurrent liabilities, beginning 1,803,098 900,505
Noncurrent liabilities, recognized in income 52,617 808,372
Noncurrent liabilities,Other 8,155 [2] 94,221 [1]
Noncurrent liabilities, ending 1,863,870 1,803,098
Voluntary Retirement Program [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 24,308 10,815
Noncurrent assets, recognized in income (22,551) 13,493
Noncurrent assets, ending 1,757 24,308
Other [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent assets, beginning 158,086 149,662
Noncurrent assets, recognized in income 23,792 1,457
Noncurrent assets, reclassification [1]   5,905
Noncurrent assets, ending 181,878 158,086
Other [1]   1,062
Noncurrent liabilities, beginning 11,608 31,951
Noncurrent liabilities, recognized in income 19,725 (20,343)
Noncurrent liabilities, ending 34,833 11,608
Deemed Cost Of Property Plant And Equipment [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent liabilities, beginning 326,497 350,491
Noncurrent liabilities, recognized in income (18,810) (23,994)
Noncurrent liabilities, ending 307,687 326,497
Accelerated Depreciation [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent liabilities, beginning 102,324 75,955
Noncurrent liabilities, recognized in income 25,832 26,369
Noncurrent liabilities, ending 128,156 102,324
Financial Instruments [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent liabilities, beginning 105,504 117,682
Noncurrent liabilities, recognized in income 11,134 (12,178)
Noncurrent liabilities, ending 116,638 105,504
Escrow Deposits Monetary Variation [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent liabilities, beginning 65,119 61,727
Noncurrent liabilities, recognized in income 7,708 3,392
Noncurrent liabilities, ending 72,827 65,119
Transaction Cost On Borrowings And Debentures [Member]    
IfrsStatementLineItems [Line Items]    
Noncurrent liabilities, beginning 28,036 23,203
Noncurrent liabilities, recognized in income 2,280 4,833
Noncurrent liabilities, ending 30,316 R$ 28,036
Noncurrent liabilities recognized comprehensive income R$ 3,500  
[1] Effects of the business combination and discontinued operation detailed in the Financial Statements as of December 2021.
[2] Effects of the business combination (Note 1.1.1).