FOREIGN CURRENCY DERIVATIVES (Details 4)	Sep. 30, 2017 EUR (€)	Sep. 30, 2017 GBP (£)	Mar. 31, 2017 EUR (€)	Mar. 31, 2017 GBP (£)
Foreign Exchange Option [Member]
Derivative [Line Items]
Notional amount of contracts	€ 81,700,000.0	£ 23,900,000.0	€ 73,500,000.0	£ 23,900,000.0
Foreign Exchange Forward [Member]
Derivative [Line Items]
Notional amount of contracts	€ 13,400,000.0	£ 3,600,000.0	€ 11,200,000.0	£ 3,300,000.0