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Income taxes (Details) - CLP ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income Taxes [Line Items] |  |
Current tax assets, current | $ 26,062,856 | $ 10,865,347
Refundable tax previous year |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 2,114,087 | 3,911,803
Argentinean tax credits [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 758,387 | 3,200,454
Monthly provisions [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 14,752,325 | 3,498,109
Payment of absorbed profit provision [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 7,484,691 | 1,154
Other credits [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | $ 953,366 | $ 253,827

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