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Commitments (Details) Tons in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 20, 2020 USD ($) | Feb. 22, 2018 USD ($) | Jan. 31, 2013 | Dec. 31, 2021 USD ($) m² Tons | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jan. 31, 2018 USD ($)
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Rental expense |  |  |  | $ 0 | $ 100,000 | $ 700,000 |
Contract term |  |  | 5 years |  |  |  |
Recognized income |  |  |  | 1,200,000 | $ 1,100,000 | $ 1,800,000 |
Supplier amount |  |  |  |  |  |  | $ 6,300,000
Purchase of energy |  |  |  |  |  |  | 10,000
Budget |  | $ 24,000,000 |  |  |  |  |
Cost of project |  |  |  | 1,000,000 |  |  |
Cost amount |  |  |  | $ 415,000 |  |  |
Investing public shares, percentage |  |  |  | 12.00% |  |  |
Commiting to pay | $ 4,000,000 |  |  |  |  |  |
Total value | $ 105,000,000 |  |  |  |  |  |
Bottom of range [member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Produce of metric tons |  |  |  |  |  |  | 17,500
Top of range [member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Produce of metric tons |  |  |  |  |  |  | 22,500
Cariacica [Member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Produce of metric tons | Tons |  |  |  | 600 |  |  |
Rolled Steel Products [Member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Produce of metric tons | Tons |  |  |  | 450 |  |  |
Espírito Santo [Member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Square meters (in Square Meters) | m² |  |  |  | 1,200,000 |  |  |
Itauna [Member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Produce of metric tons | Tons |  |  |  | 120 |  |  |
NRG Curtailment Solutions, Inc. [Member] |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |
Contract term |  |  | 5 years |  |  |  |

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