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INVESTMENTS IN NON-CONSOLIDATED COMPANIES (Value of investment in Usinas) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of unconsolidated structured entities [line items] |  |  |
Investments in non-consolidated companies, beginning balance | $ 471,306 | $ 513,648 |
Share of results | 400,732 | 57,555 |
Other comprehensive income | (38,441) | (93,598) |
Dividends | (82,122) | (6,299) | $ (3,111)
Investments in non-consolidated companies, ending balance | 751,475 | 471,306 | 513,648
USINAS SIDEÚRGICAS DE MINAS GERAIS S.A. |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Investments in non-consolidated companies, beginning balance | 422,948 | 486,643 |
Share of results | 379,067 | 35,580 |
Other comprehensive income | (38,680) | (93,237) |
Dividends | (81,624) | (6,038) |
Investments in non-consolidated companies, ending balance | $ 681,711 | $ 422,948 | $ 486,643

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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2021-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_24_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph B16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_e&doctype=Standard -URIDate 2021-03-24 + Details
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