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INVESTMENTS - Summarized Exchange Rate Translation from MXN to USD (Details) - Grupo Vasconia S.A.B. - $ / $
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Schedule of Equity Method Investments [Line Items]        
Average daily exchange rate for period (MXN per USD) 22.06 19.42    
Minimum        
Schedule of Equity Method Investments [Line Items]        
Average daily exchange rate for period (MXN per USD)     19.91 19.11
Maximum        
Schedule of Equity Method Investments [Line Items]        
Average daily exchange rate for period (MXN per USD)     23.31 19.42