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INVESTMENTS IN NON-CONSOLIDATED COMPANIES (Summarized balance sheet information) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Assets |  |  |  |  |  |  |
Other current investments | $ 813,527 |  | $ 212,271 |  |  |  |
Cash and cash equivalents | 537,882 | [1] | 519,965 | [1] | $ 250,541 | [1] | $ 337,779
Total Assets | 12,856,235 |  | 12,935,533 |  |  |  |
Liabilities |  |  |  |  |  |  |
Non-current | 551,856 |  | 507,603 |  |  |  |
Non-current borrowings | 1,327,289 |  | 1,628,892 |  |  |  |
Current | 249,836 |  | 240,934 |  |  |  |
Current borrowings | 395,604 |  | 559,782 |  |  |  |
Total Liabilities | 4,413,082 |  | 5,220,660 |  |  |  |
Non-controlling interest | 1,157,038 |  | 1,103,208 |  |  |  |
Total Equity | 8,443,153 |  | 7,714,873 |  | $ 7,484,576 |  | $ 5,852,771
USINAS SIDEÚRGICAS DE MINAS GERAIS S.A. |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Non-current | 3,487,000 |  | 4,336,000 |  |  |  |
Current | 1,339,000 |  | 1,721,000 |  |  |  |
Other current investments | 276,000 |  | 166,000 |  |  |  |
Cash and cash equivalents | 661,000 |  | 311,000 |  |  |  |
Total Assets | 5,763,000 |  | 6,534,000 |  |  |  |
Liabilities |  |  |  |  |  |  |
Non-current | 540,000 |  | 718,000 |  |  |  |
Non-current borrowings | 1,122,000 |  | 1,237,000 |  |  |  |
Current | 836,000 |  | 687,000 |  |  |  |
Current borrowings | 26,000 |  | 30,000 |  |  |  |
Total Liabilities | 2,524,000 |  | 2,672,000 |  |  |  |
Non-controlling interest | 378,000 |  | 378,000 |  |  |  |
Total Equity | $ 2,860,944 |  | $ 3,484,000 |  |  |  |
[1] | It includes restricted cash of $54, $69 and $2,216 as of December 31, 2020, 2019 and 2018, respectively. In addition, the Company had other investments with a maturity of more than three months for $813,527, $212,271 and $44,529 as of December 31, 2020, 2019 and 2018, respectively.

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