FOREIGN CURRENCY DERIVATIVES (Details 5) - Foreign currency swap contract [Member] MXN in Thousands, $ in Thousands	3 Months Ended
Jun. 30, 2017 MXN	Jun. 30, 2017 USD ($)	Mar. 31, 2017 MXN
Derivative [Line Items]
Notional amount of contracts	MXN 204,460	$ 10,755	MXN 287,200
Position	Buy MXN
Maturity	12 months

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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Period Type:	instant

- Definition

Identification of the specific currency to be purchased upon settlement or exercise of the foreign currency derivative.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Details

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