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FORIEGN CURRENCY DERIVATIVES (Details)
MXN in Thousands, $ in Thousands
12 Months Ended
Mar. 31, 2017
MXN
Jun. 30, 2017
MXN
financial_institution
Jun. 30, 2017
USD ($)
financial_institution
Derivative [Line Items]      
Number of financial institutions company has International Swap and Derivatives Association agreements   4 4
Foreign currency swap contract [Member]      
Derivative [Line Items]      
Notional amount of contracts MXN 287,200 MXN 204,460 $ 10,755
Cash flow hedges [Member] | Options [Member] | Minimum [Member]      
Derivative [Line Items]      
Term of derivative contract 6 months    
Cash flow hedges [Member] | Options [Member] | Maximum [Member]      
Derivative [Line Items]      
Term of derivative contract 11 months    
Cash flow hedges [Member] | Forwards [Member]      
Derivative [Line Items]      
Term of derivative contract 3 months