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Right-of-use assets and leases payable - Summary of Information About Right of Use Assets (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period R$ 1,791,377    
Amortization of right-of-use assets 305,899 R$ 288,419 R$ 260,716
Balance at end of period R$ 1,711,526 R$ 1,791,377  
Vehicles [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 8 years 9 years 8 years
Equipment [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 11 years 12 years 12 years
Right-of-use assets [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period R$ 1,791,377 R$ 1,651,295 R$ 2,150,286
Additions and remeasurement 277,650 [1] 504,297 296,402
Write-offs (77,727) (70,485) (75,735)
Transfer (4,491) [2] (5,311) (11,935)
Exchange rate variation     1,837
Amortization of right-of-use assets (305,900) (288,419) (359,506)
Acquisition of subsidiary (iii) [3] 30,617    
Reclassification to assets held for sale     (350,054)
Balance at end of period 1,711,526 1,791,377 1,651,295
Right-of-use assets [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period 2,571,718 2,283,862 2,735,591
Additions and remeasurement 277,650 [1] 504,297 335,359
Write-offs (239,305) (216,441) (166,204)
Transfer 0 [2] 0 0
Exchange rate variation     3,318
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 40,279    
Reclassification to assets held for sale     (624,202)
Balance at end of period 2,650,342 2,571,718 2,283,862
Right-of-use assets [member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (780,341) (632,567) (585,305)
Additions and remeasurement 0 [1] 0 0
Write-offs 161,578 145,956 90,469
Transfer (4,491) [2] (5,311) (11,935)
Exchange rate variation     (1,481)
Amortization of right-of-use assets (305,900) (288,419) (359,506)
Acquisition of subsidiary (iii) [3] (9,662)    
Reclassification to assets held for sale     235,191
Balance at end of period R$ (938,816) (780,341) (632,567)
Right-of-use assets [member] | Provision for impairment losses [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period   R$ 0 0
Additions and remeasurement     (38,957)
Write-offs     0
Transfer     0
Exchange rate variation     0
Amortization of right-of-use assets     0
Reclassification to assets held for sale     38,957
Balance at end of period     R$ 0
Right-of-use assets [member] | Real Estate Property [Member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 10 years 10 years 10 years
Balance at beginning of period R$ 2,019,898 R$ 1,793,473 R$ 2,254,432
Additions and remeasurement 140,245 [1] 366,805 257,787
Write-offs (165,551) (140,380) (150,718)
Transfer 0 [2] 0 0
Exchange rate variation     1,295
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 4,274    
Reclassification to assets held for sale     (569,323)
Balance at end of period 1,998,866 2,019,898 1,793,473
Right-of-use assets [member] | Real Estate Property [Member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (634,688) (489,470) (481,975)
Additions and remeasurement 0 [1] 0 0
Write-offs 95,896 79,003 76,954
Transfer (4,491) [2] (5,311) 0
Exchange rate variation     (530)
Amortization of right-of-use assets (209,522) (218,910) (283,882)
Acquisition of subsidiary (iii) [3] (393)    
Reclassification to assets held for sale     199,963
Balance at end of period R$ (753,198) (634,688) (489,470)
Right-of-use assets [member] | Real Estate Property [Member] | Provision for impairment losses [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period   R$ 0 0
Additions and remeasurement     (38,957)
Write-offs     0
Transfer     0
Exchange rate variation     0
Amortization of right-of-use assets     0
Reclassification to assets held for sale     38,957
Balance at end of period     R$ 0
Right-of-use assets [member] | Port Areas [Member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 29 years 29 years 20 years
Balance at beginning of period R$ 311,174 R$ 299,630 R$ 268,534
Additions and remeasurement 3,790 [1] 11,868 31,096
Write-offs 0 (324) 0
Transfer 0 [2] 0 0
Exchange rate variation     0
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 0    
Reclassification to assets held for sale     0
Balance at end of period 314,964 311,174 299,630
Right-of-use assets [member] | Port Areas [Member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (36,773) (23,526) (3,962)
Additions and remeasurement 0 [1] 0 0
Write-offs 0 0 0
Transfer 0 [2] 0 (11,935)
Exchange rate variation     0
Amortization of right-of-use assets (7,847) (13,247) (7,629)
Acquisition of subsidiary (iii) [3] 0    
Reclassification to assets held for sale     0
Balance at end of period R$ (44,620) R$ (36,773) R$ (23,526)
Right-of-use assets [member] | Vehicles [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 4 years 4 years 4 years
Balance at beginning of period R$ 186,455 R$ 146,173 R$ 139,843
Additions and remeasurement 120,705 [1] 115,666 26,589
Write-offs (71,781) (75,384) (9,315)
Transfer 0 [2] 0 0
Exchange rate variation     103
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 35,009    
Reclassification to assets held for sale     (11,047)
Balance at end of period 270,388 186,455 146,173
Right-of-use assets [member] | Vehicles [member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (83,902) (98,867) (63,091)
Additions and remeasurement 0 [1] 0 0
Write-offs 63,708 66,554 7,032
Transfer 0 [2] 0 0
Exchange rate variation     (54)
Amortization of right-of-use assets (80,661) (51,589) (48,146)
Acquisition of subsidiary (iii) [3] (9,112)    
Reclassification to assets held for sale     5,392
Balance at end of period R$ (109,967) R$ (83,902) R$ (98,867)
Right-of-use assets [member] | Equipment [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 5 years 5 years 6 years
Balance at beginning of period R$ 26,345 R$ 16,740 R$ 44,936
Additions and remeasurement 12,910 [1] 9,958 19,887
Write-offs (1,973) (353) (6,171)
Transfer 0 [2] 0 0
Exchange rate variation     1,920
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 996    
Reclassification to assets held for sale     (43,832)
Balance at end of period 38,278 26,345 16,740
Right-of-use assets [member] | Equipment [member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (2,850) (1,834) (19,619)
Additions and remeasurement 0 [1] 0 0
Write-offs 1,974 399 6,483
Transfer 0 [2] 0 0
Exchange rate variation     (897)
Amortization of right-of-use assets (4,151) (1,415) (17,637)
Acquisition of subsidiary (iii) [3] (157)    
Reclassification to assets held for sale     29,836
Balance at end of period R$ (5,184) R$ (2,850) R$ (1,834)
Right-of-use assets [member] | Other assets [member] | Cost [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Weighted average useful life 20 years 20 years 20 years
Balance at beginning of period R$ 27,846 R$ 27,846 R$ 27,846
Additions and remeasurement 0 [1] 0 0
Write-offs 0 0 0
Transfer 0 [2] 0 0
Exchange rate variation     0
Amortization of right-of-use assets 0 0 0
Acquisition of subsidiary (iii) [3] 0    
Reclassification to assets held for sale     0
Balance at end of period 27,846 27,846 27,846
Right-of-use assets [member] | Other assets [member] | Accumulated amortization [member]      
Disclosure of quantitative information about right-of-use assets [line items]      
Balance at beginning of period (22,128) (18,870) (16,658)
Additions and remeasurement 0 [1] 0 0
Write-offs 0 0 0
Transfer 0 [2] 0 0
Exchange rate variation     0
Amortization of right-of-use assets (3,719) (3,258) (2,212)
Acquisition of subsidiary (iii) [3] 0    
Reclassification to assets held for sale     0
Balance at end of period R$ (25,847) R$ (22,128) R$ (18,870)
[1] Considers R$ 257,201 referring to additions and remeasurements between right-of-use assets and leases payable.
[2] Refers to the amortization of the right of use, which is being capitalized as Construction in progress until the beginning of its operation.
[3] For further information, see Note 28.