DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Effect of Foreign Exchange Forward Contracts on Other Comprehensive Income and Results of Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
General and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Gain on derivative	$ 0	$ 46	$ 0	$ 46
Forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in OCI on Derivative	(42)	236	127	247
Gain (Loss) Reclassified from Accumulated OCI into Income	40	(137)	(65)	(94)
Forward contracts \| Research and development
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in OCI on Derivative	(42)	236	127	247
Gain (Loss) Reclassified from Accumulated OCI into Income	(6)	(22)	(14)	(13)
Forward contracts \| Sales and marketing
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Income	46	(115)	(51)	(81)
Forward contracts \| General and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Gain on derivative	$ 0	$ 46	$ 0	$ 46

Amount of increase in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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