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TRADE ACCOUNTS RECEIVABLE - Main customers (Details) - Net Sales - Pulp - customer	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
TRADE ACCOUNTS RECEIVABLE
Number of customers	0	1
Concentration risk percentage	10.00%	10.00%

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

Number of customers in concentration of risk analysis representing major percentage of total net sales.

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This represents concentration risk percentage.

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