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Property, plant and equipment, intangible assets, goodwill, right-of-use assets and contract assets - Summary of transaction charts of right of use assets (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | R$ 7,916,230 |  |
Amortization additions |  | R$ 100,593 | R$ 40,545
Ending Balance | 7,947,267 | 7,916,230 |
Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 8,911,937 | 5,181,933 |
Business Combination (note 9.3) | 3,240 |  |
Additions | 150,963 | 3,565,590 |
Contractual adjustments | 430,701 | 263,887 |
Transfers | (233,507) | (107,963) |
Disposals | (14,957) |  |
Currency translation adjustments | 4,005 | 8,490 |
Ending Balance | 9,252,382 | 8,911,937 | 5,181,933
Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (995,707) | (713,618) |
Transfers | 100,472 | 59,745 |
Disposals | 6,109 |  |
Currency translation adjustments | (1,736) | (1,382) |
Amortization additions | (414,253) | (339,486) |
Impairment |  | (966) |
Ending Balance | (1,305,115) | (995,707) | (713,618)
Land and buildings [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 264,998 |  |
Ending Balance | 186,964 | 264,998 |
Land and buildings [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 380,828 | 247,430 |
Business Combination (note 9.3) | 3,240 |  |
Additions | 73,039 | 124,014 |
Contractual adjustments | 41,663 | 187 |
Transfers | (233,296) |  |
Disposals | (12,121) |  |
Currency translation adjustments | 1,530 | 9,197 |
Ending Balance | 254,883 | 380,828 | 247,430
Land and buildings [member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (115,830) | (78,965) |
Transfers | 75,134 |  |
Disposals | 3,880 |  |
Currency translation adjustments | (265) | (1,888) |
Amortization additions | (30,838) | (34,977) |
Impairment |  |  |
Ending Balance | (67,919) | (115,830) | (78,965)
Machinery, equipment and facilities [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 27,027 |  |
Ending Balance | 113,191 | 27,027 |
Machinery, equipment and facilities [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 39,122 | 10,718 |
Business Combination (note 9.3) |  |  |
Additions | 47,554 | 18,714 |
Contractual adjustments | 48,784 | 10,397 |
Transfers | 7,264 |  |
Disposals | (2,836) |  |
Currency translation adjustments | 2,561 | (707) |
Ending Balance | 142,449 | 39,122 | 10,718
Machinery, equipment and facilities [member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (12,095) | (3,074) |
Transfers | (1,547) |  |
Disposals | 2,229 |  |
Currency translation adjustments | (1,506) | 506 |
Amortization additions | (16,339) | (9,527) |
Impairment |  |  |
Ending Balance | (29,258) | (12,095) | (3,074)
Freight cars and Locomotives [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 572,585 |  |
Ending Balance | 539,392 | 572,585 |
Freight cars and Locomotives [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 933,325 | 1,038,641 |
Business Combination (note 9.3) |  |  |
Additions | 43 | 864 |
Contractual adjustments | 5,242 | 1,783 |
Transfers |  | (107,963) |
Disposals |  |  |
Currency translation adjustments |  |  |
Ending Balance | 938,610 | 933,325 | 1,038,641
Freight cars and Locomotives [member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (360,740) | (367,072) |
Transfers |  | 59,745 |
Disposals |  |  |
Currency translation adjustments |  |  |
Amortization additions | (38,478) | (53,413) |
Impairment |  |  |
Ending Balance | (399,218) | (360,740) | (367,072)
Software [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 69,835 |  |
Ending Balance | 70,069 | 69,835 |
Software [Member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 82,369 | 66,931 |
Business Combination (note 9.3) |  |  |
Additions |  | 15,438 |
Contractual adjustments | 4,659 |  |
Transfers |  |  |
Disposals |  |  |
Currency translation adjustments |  |  |
Ending Balance | 87,028 | 82,369 | 66,931
Software [Member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (12,534) | (7,594) |
Transfers |  |  |
Disposals |  |  |
Currency translation adjustments |  |  |
Amortization additions | (4,425) | (4,940) |
Impairment |  |  |
Ending Balance | (16,959) | (12,534) | (7,594)
Vehicles [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 896 |  |
Ending Balance | 13,974 | 896 |
Vehicles [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 13,925 | 14,259 |
Business Combination (note 9.3) |  |  |
Additions | 15,219 |  |
Contractual adjustments | 41 | (334) |
Transfers |  |  |
Disposals |  |  |
Currency translation adjustments | (86) |  |
Ending Balance | 29,099 | 13,925 | 14,259
Vehicles [member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (13,029) | (6,457) |
Transfers |  |  |
Disposals |  |  |
Currency translation adjustments | 35 |  |
Amortization additions | (2,131) | (6,572) |
Impairment |  |  |
Ending Balance | (15,125) | (13,029) | (6,457)
Port and rail infrastructure [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 6,980,889 |  |
Ending Balance | 7,023,677 | 6,980,889 |
Port and rail infrastructure [Member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | 7,462,368 | 3,803,954 |
Business Combination (note 9.3) |  |  |
Additions | 15,108 | 3,406,560 |
Contractual adjustments | 330,312 | 251,854 |
Transfers | (7,475) |  |
Disposals |  |  |
Currency translation adjustments |  |  |
Ending Balance | 7,800,313 | 7,462,368 | 3,803,954
Port and rail infrastructure [Member] | Accumulated depreciation and amortisation [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance | (481,479) | (250,456) |
Transfers | 26,885 |  |
Disposals |  |  |
Currency translation adjustments |  |  |
Amortization additions | (322,042) | (230,057) |
Impairment |  | (966) |
Ending Balance | R$ (776,636) | R$ (481,479) | R$ (250,456)

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