OTHER ACCRUED EXPENSES: (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017
Other Accrued Expenses [Abstract].
Accrued purchase consideration	$ 5,880	$ 5,880
Other accrued expenses	52,231	53,981
Other accrued expenses	$ 58,111	$ 59,861