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Income Taxes (Details) R$ in Thousands, $ in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 MXN ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 BRL (R$) | Dec. 31, 2020 MXN ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 MXN ($)
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Amount of income tax |  | $ 1.0 |  |  | $ 1.5 |
Effective tax rate | 31.73% | 31.73% | 31.73% | 31.24% | 31.24% | 58.21%
Subsidiary of tax losses | $ 13,835,636 |  |  | $ 4,875,927 |  | $ 1,636,416
Brazil, Brazil Real [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Subsidiary of tax losses | R$ |  |  | R$ 85,167 |  |  |
BRL [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Subsidiary of tax losses | 0 |  |  |  |  |
Companhia Siderurgica do Espirito Santo S.A. [Member] | Brazil, Brazil Real [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Subsidiary of tax losses | R$ |  |  | R$ 0 |  |  |
Companhia Siderurgica do Espirito Santo S.A. [Member] | BRL [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Subsidiary of tax losses | $ 313,000 |  |  |  |  |
Country of domicile [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Amount of income tax |  |  |  | $ 554,435 |  | $ 2,323,662
Effective tax rate | 30.00% | 30.00% | 30.00% | 30.00% | 30.00% | 30.00%
Republic [Member] |  |  |  |  |  |
Income Taxes (Details) [Line Items] |  |  |  |  |  |
Expiration period, description | As of December 31, 2021, Republic had USD$ 320.2 million of tax losses pending to amortize for federal tax purposes, of those USD $189.2 million are undefined and USD $200.3 million expire between 2033 and 2038; USD$ 319.2 million of tax losses for state and local purposes that expire between 2021 and 2040 and approximately USD$ 6.7 million of tax losses at the subsidiary located in Canada, which expire between 2032 and 2040. | As of December 31, 2021, Republic had USD$ 320.2 million of tax losses pending to amortize for federal tax purposes, of those USD $189.2 million are undefined and USD $200.3 million expire between 2033 and 2038; USD$ 319.2 million of tax losses for state and local purposes that expire between 2021 and 2040 and approximately USD$ 6.7 million of tax losses at the subsidiary located in Canada, which expire between 2032 and 2040. | As of December 31, 2021, Republic had USD$ 320.2 million of tax losses pending to amortize for federal tax purposes, of those USD $189.2 million are undefined and USD $200.3 million expire between 2033 and 2038; USD$ 319.2 million of tax losses for state and local purposes that expire between 2021 and 2040 and approximately USD$ 6.7 million of tax losses at the subsidiary located in Canada, which expire between 2032 and 2040. |  |  |

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