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RELATED-PARTY TRANSACTIONS - Key Management compensation (Details) - Key Management personnel R$ in Thousands | 12 Months Ended
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Dec. 31, 2019 BRL (R$) EquityInstruments | Dec. 31, 2018 BRL (R$) EquityInstruments | Dec. 31, 2017 BRL (R$) EquityInstruments
RELATED PARTY TRANSACTIONS |  |  |
Key management salaries, variable compensation and benefits | R$ | R$ 32,359 | R$ 50,310 |
Contributions to defined contribution pension plans | R$ | 1,687 | 1,595 |
Long term incentive plan attributable to key management | R$ | R$ 26,631 | R$ 23,189 | R$ 10,451
Restricted shares |  |  |
Restricted shares granted to Management |  |  |
Balance, beginning of year | 6,375,547 | 5,945,310 |
Granted | 1,083,116 | 1,255,286 |
Exercised | (627,076) | (511,333) |
Cancelled | (38,553) |  |
Others | 75,163 | 313,716 |
Balance, end of year | 6,717,871 | 6,375,547 | 5,945,310

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- Definition The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2019-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_17&doctype=Standard -URIDate 2019-03-27 + Details
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