FOREIGN CURRENCY DERIVATIVES (Details) $ in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
	Jul. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) financial_institution	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) financial_institution	Sep. 30, 2018 USD ($)	Sep. 30, 2019 MXN ($) financial_institution	Mar. 31, 2019 USD ($)	Mar. 31, 2019 MXN ($)
Derivative [Line Items]
Number of financial institutions company has International Swap and Derivatives Association agreements | financial_institution		4		4		4
Net (gains) losses reclassified into income for interest rate swaps		$ 945	$ 977	$ 1,597	$ 977
Total derivative liabilities		6,837		6,837			$ 3,275
Foreign currency swap contract [Member]
Derivative [Line Items]
Notional amount of contracts		2,413		$ 2,413		$ 47,930		$ 149,700
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount of contracts	$ 831,000
Term of derivative contract	4 years
Fixed interest rate	2.78%
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
Other Liabilities [Member]
Derivative [Line Items]
Total derivative liabilities		16,182		$ 16,182			9,483
Other Liabilities [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Total derivative liabilities		$ 15,316		$ 15,316			$ 8,594