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ALLOWANCES AND PROVISIONS - NON CURRENT AND CURRENT | 12 Months Ended
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Dec. 31, 2021
Provisions [abstract] |
ALLOWANCES AND PROVISIONS - NON CURRENT AND CURRENT | ALLOWANCES AND PROVISIONS – NON CURRENT AND CURRENT
Provisions and allowances - Non current |  | Liabilities |  | Liabilities |
|  | Legal claims and other matters |  | Asset retirement obligation |
Year ended December 31, 2021 |  |  |  |  |
Values at the beginning of the year |  | 80,570 |  |  | 41,673 |  |
Translation differences |  | (5,898) |  |  | (1,084) |  |
Additions |  | 15,802 |  |  | (8,491) |  |
Reversals |  | (4,041) |  |  | — |  |
Uses |  | (3,134) |  |  | — |  |
At December 31, 2021 |  | 83,299 |  |  | 32,098 |  |
Year ended December 31, 2020 |  |  |  |  |
Values at the beginning of the year |  | 613,352 |  |  | 26,556 |  |
Translation differences |  | (151,466) |  |  | (1,049) |  |
Additions |  | 3,760 |  |  | 16,166 |  |
Reversals |  | (384,933) |  |  | — |  |
Uses |  | (143) |  |  | — |  |
At December 31, 2020 |  | 80,570 |  |  | 41,673 |  |
18. ALLOWANCES AND PROVISIONS – NON CURRENT AND CURRENT (continued)
Provisions and allowances - Current |  | Deducted from assets |  | Liabilities
|  | Allowance for doubtful accounts |  | Obsolescence allowance |  | Asset retirement obligation
Year ended December 31, 2021 |  |  |  |  |  |
Values at the beginning of the year |  | 10,500 |  |  | 58,610 |  |  | 4,515 |
Translation differences |  | (721) |  |  | (5) |  |  | (323) |
Additions |  | 775 |  |  | 15,968 |  |  | 5,909 |
Reversals |  | (425) |  |  | (12,003) |  |  | — |
Uses |  | (657) |  |  | (1,094) |  |  | (6,491) |
At December 31, 2021 |  | 9,472 |  |  | 61,476 |  |  | 3,610 |
Year ended December 31, 2020 |  |  |  |  |  |
Values at the beginning of the year |  | 12,961 |  |  | 62,167 |  |  | 8,502 |
Translation differences |  | (1,789) |  |  | — |  |  | (1,241) |
Additions |  | 1,437 |  |  | 11,009 |  |  | 3,633 |
Reversals |  | (1,101) |  |  | (12,288) |  |  | — |
Uses |  | (1,008) |  |  | (2,278) |  |  | (6,379) |
At December 31, 2020 |  | 10,500 |  |  | 58,610 |  |  | 4,515 |

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