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ALLOWANCE FOR CREDIT LOSSES (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Allowance for credit losses | $ (40,293) | $ (29,545) |  | $ (40,293) | $ (29,545)
Receivable, Net |  |  |  | 408,958 | 436,815
Movement of allowances |  |  |  |  |
Beginning of the year | 29,545 |  |  |  |
Closing balance | 40,293 | 29,545 |  |  |
Allowances for accounts receivable, trade |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receviable, gross |  |  |  | 449,251 | 466,360
Allowance for credit losses | (40,293) | (32,733) | $ (32,733) | (40,293) | (29,545)
Receivable, Net |  |  |  | 408,958 | 436,815
Movement of allowances |  |  |  |  |
Beginning of the year | 29,545 | 32,733 | 32,941 |  |
Allowances made (reversed) during the year, net | 11,387 | (1,386) | 869 |  |
Accounts written-off against allowances | (639) | (309) | (297) |  |
Foreign exchange effect |  | (1,493) | (780) |  |
Closing balance | 40,293 | 29,545 | 32,733 |  |
Allowances for advances to suppliers |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receviable, gross |  |  |  | 299,019 | 109,156
Allowance for credit losses | (19,700) | (20,281) |  | (19,700) | (20,281)
Receivable, Net |  |  |  | 279,319 | 88,875
Movement of allowances |  |  |  |  |
Beginning of the year | 20,281 |  |  |  |
Closing balance | 19,700 | 20,281 |  |  |
Allowances for other receivables |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receviable, gross |  |  |  | 238,779 | 181,524
Allowance for credit losses | (8,802) | (11,431) |  | (8,802) | (11,431)
Receivable, Net |  |  |  | 229,977 | 170,093
Movement of allowances |  |  |  |  |
Beginning of the year | 11,431 |  |  |  |
Closing balance | 8,802 | 11,431 |  |  |
Advances to Suppliers and Other Receivable [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Allowance for credit losses | (28,502) | (31,712) | (30,630) | $ (28,502) | $ (31,712)
Movement of allowances |  |  |  |  |
Beginning of the year | 31,712 | 30,630 | 29,111 |  |
Allowances made (reversed) during the year, net | 2,280 | 2,657 | 2,112 |  |
Accounts written-off against allowances | (5,490) | (1,452) |  |  |
Foreign exchange effect |  | (123) | (593) |  |
Closing balance | $ 28,502 | $ 31,712 | $ 30,630 |  |

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs which have been charged to costs and expenses net of the total of recoveries of amounts due the Entity that had previously been written off as uncollectible using allowances (the valuation accounts that are netted against the cost of an asset to value it at its carrying value) and total of reestablishments of reserves (liabilities established to represent expected future costs) that had previously been utilized. + References No definition available. + Details
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