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PROPERTY, PLANT AND EQUIPMENT - Impairment (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Land, buildings and construction |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Carrying value of impaired assets | R$ 345,087 | R$ 124,761
Machines, equipment, and installations |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Carrying value of impaired assets | 710,476 | 504,287
Property, plant and equipment under construction |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Carrying value of impaired assets | R$ 543,726 | R$ 543,726

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- Definition The amount of property, plant and equipment stated at revalued amounts. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 77 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_77&doctype=Standard -URIDate 2020-01-01 + Details
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