FOREIGN CURRENCY DERIVATIVES (Details 4)	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 GBP (£)	Mar. 31, 2017 EUR (€)	Mar. 31, 2017 GBP (£)
Option contracts [Member]
Derivative [Line Items]
Notional amount of contracts	€ 75,800,000.0	£ 22,900,000.0	€ 73,500,000.0	£ 23,900,000.0
Forward contracts [Member]
Derivative [Line Items]
Notional amount of contracts	€ 13,000,000.0	£ 4,100,000.0	€ 11,200,000.0	£ 3,300,000.0