INVESTMENTS - Summary of Proportionate Share of Vasconia's Net Income translated from MXN to USD (Details) - Grupo Vasconia S.A.B. - $ / $	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period (MXN per USD)	19.42	18.94
Minimum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period (MXN per USD)			19.11	18.71
Maximum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period (MXN per USD)			19.42	19.38