SEGMENT AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) Segment	Sep. 30, 2019 USD ($)
Segment Reporting [Abstract]
Number of segments | Segment			1
Segment Reporting Information [Line Items]
Total revenue	$ 205,339	$ 216,421	$ 389,154	$ 402,445
United States
Segment Reporting Information [Line Items]
Total revenue	120,027	139,544	227,350	246,647
Europe
Segment Reporting Information [Line Items]
Total revenue	37,990	33,901	72,748	65,210
Asia
Segment Reporting Information [Line Items]
Total revenue	13,878	13,138	27,574	25,690
Rest of the world
Segment Reporting Information [Line Items]
Total revenue	$ 33,444	$ 29,838	$ 61,482	$ 64,898