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v3.21.1

21. EQUITY (Details 2) - shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Equity |  |  |
Shares at the beginning of the period | 811,759,800 | 811,416,022 | 811,139,545
Purchase of treasury shares | (4,836,000) |  |
Delivery of restricted shares | 783,362 | 343,778 | 276,477
Shares at the end of the period | 807,707,162 | 811,759,800 | 811,416,022

X
- Definition The number of shares delivery of restricted shares. + References No definition available. + Details
Name: | brf_AnticipatedTransferOfRestrictedShares
Namespace Prefix: | brf_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | brf_EquityOneAbstract
Namespace Prefix: | brf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase in equity resulting from the purchase or issue of treasury shares. + References No definition available. + Details
Name: | brf_SaleOfTreasuryShares
Namespace Prefix: | brf_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References No definition available. + Details
Name: | brf_TreasuryStockShares1
Namespace Prefix: | brf_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant