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Risks and Financial Instruments - Summary the position of hedging instruments (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Derivatives designated as hedge accounting [member]    
Disclosure of detailed information about financial instruments [line items]    
Fair value, Assets R$ 289,893 R$ 533,642 [1]
Fair value, Liabilities (152,249) (47,373) [1]
Gains (losses), Results R$ (1,180,344) R$ (135,479)
Derivatives designated as hedge accounting [member] | NDF [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets BRL BRL
Contracted rates-liabilities Heating Oil/ RBOB USD
Final maturity Jul-23 Jan-22
Notional amount [2] R$ 181,880 R$ 68,361
Fair value, Assets 2,936 7,048 [1]
Fair value, Liabilities (70,630) (1,346) [1]
Gains (losses), Results R$ (944,896) R$ 813
Derivatives designated as hedge accounting [member] | Interest rate swap contract [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets IPCA +5.03% 4.59% + IPCA
Contracted rates-liabilities 102.87% DI 102.00% DI
Final maturity Jun-32 Sept-28
Notional amount [2] R$ 3,226,054 R$ 2,226,054
Fair value, Assets 173,741 201,638 [1]
Fair value, Liabilities (59,789) (35,170) [1]
Gains (losses), Results R$ (143,762) R$ (17,922)
Derivatives designated as hedge accounting [member] | Foreign exchange swap [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets USD + 4.95 % USD +4.65%
Contracted rates-liabilities 106.67% DI 104.87% DI
Final maturity Sept-25 Sept-23
Notional amount [2] R$ 221,339 R$ 125,000
Fair value, Assets 106,550 212,509 [1]
Fair value, Liabilities (9,243) 0 [1]
Gains (losses), Results R$ (121,296) R$ 11,712
Derivatives designated as hedge accounting [member] | Foreign exchange swap one [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets USD +LIBOR-3M +1.14% USD +LIBOR-3M
Contracted rates-liabilities 105.00% DI 105.00% DI
Final maturity Jun-22 Jun-22
Notional amount [2] R$ 0 R$ 50,000
Fair value, Assets 0 109,332 [1]
Fair value, Liabilities 0 0 [1]
Gains (losses), Results R$ (21,566) R$ 10,779
Derivatives designated as hedge accounting [member] | Foreign exchange swap two [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets EUR + 3.42%  
Contracted rates-liabilities 111.60% DI  
Final maturity Mar-23  
Notional amount [2] R$ 9,709  
Fair value, Assets 1,954  
Fair value, Liabilities 0  
Gains (losses), Results R$ 2,573  
Derivatives designated as hedge accounting [member] | Interest rate swap contract one [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets   6.47%
Contracted rates-liabilities   99.94% DI
Final maturity   Nov-24
Notional amount [2]   R$ 90,000
Fair value, Assets [1]   0
Fair value, Liabilities [1]   (9,044)
Gains (losses), Results   R$ (10,088)
Derivatives designated as hedge accounting [member] | Term [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets 6.47% BRL
Contracted rates-liabilities 99.94% DI Heating Oil/ RBOB
Final maturity Nov-24 Jan-22
Notional amount [2] R$ 90,000 R$ 120,260
Fair value, Assets 0 3,115 [1]
Fair value, Liabilities (9,513) (1,813) [1]
Gains (losses), Results R$ (5,069) (130,773)
Derivatives designated as hedge accounting [member] | NDF one [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets BRL  
Contracted rates-liabilities USD  
Final maturity Jan-23  
Notional amount [2] R$ 127,233  
Fair value, Assets 4,712  
Fair value, Liabilities (3,074)  
Gains (losses), Results 53,762  
Derivatives not designated as hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Fair value, Assets 266,617 [1] 26,516
Fair value, Liabilities (372,062) [1] (149,804)
Gains (losses), Results R$ (792,278) R$ (54,321)
Derivatives not designated as hedge accounting | NDF [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets USD USD
Contracted rates-liabilities BRL BRL
Final maturity Jul-23 Jun-22
Notional amount [2] R$ 1,116,702 R$ 625,762
Fair value, Assets 36,472 [1] 26,516
Fair value, Liabilities (54,067) [1] (23,052)
Gains (losses), Results R$ (440,359) R$ 54,743
Derivatives not designated as hedge accounting | Interest rate swap contract [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets 5.25% 5.25%
Contracted rates-liabilities 1.36% DI - 1.36%
Final maturity Jun-29 Jun-29
Notional amount [2] R$ 300,000 R$ 300,000
Fair value, Assets 0 [1] 0
Fair value, Liabilities (308,821) [1] (126,752)
Gains (losses), Results R$ (266,445) R$ (109,081)
Derivatives not designated as hedge accounting | Foreign exchange swap [member]    
Disclosure of detailed information about financial instruments [line items]    
Contracted rates-assets 0.00% 2.67%
Contracted rates-liabilities 52.99% 100.00%
Final maturity Jun-29 May-21
Notional amount [2] R$ 375,000 R$ 0
Fair value, Assets 230,145 [1] 0
Fair value, Liabilities (9,174) [1] 0
Gains (losses), Results R$ (85,474) R$ 17
[1] Amounts, net of income tax.
[2] Currency as indicated.