OTHER ACCRUED EXPENSES: (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Other Accrued Expenses [Abstract].
Acquisition-related cash held in escrow (see note 4)	$ 5,880
Other accrued expenses	51,307	$ 48,254
Other current assets	$ 57,187	$ 48,254