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Disclosures on the effects of fluctuations in foreign currency exchange rates (Parenthetical) (Details 2) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]      
Reserve for currency exchange conversion $ (11,569) $ (25,745) $ (26,307)
Grupo Tarsa [Member]      
Statement [Line Items]      
Reserve for currency exchange conversion $ 14,580,000