DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Effect of Foreign Exchange Forward Contracts on Other Comprehensive Income and Results of Operations (Details) - Forward contracts - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain Recognized in OCI on Derivative	$ 172	$ 124	$ 420	$ 24
Loss Reclassified from Accumulated OCI into Income	(103)	(37)	(197)	33
Gain Recognized in Income	30	0	76	0
Research and development
Derivative Instruments, Gain (Loss) [Line Items]
Gain Recognized in OCI on Derivative	172	124	420	24
Loss Reclassified from Accumulated OCI into Income	(21)	(8)	(34)	(16)
Sales and marketing
Derivative Instruments, Gain (Loss) [Line Items]
Loss Reclassified from Accumulated OCI into Income	(82)	(29)	(163)	49
General and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Gain Recognized in Income	$ 30	$ 0	$ 76	$ 0