STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Stock-Based Compensation Expense By Statement Of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	$ 24,621	$ 35,835	$ 52,435	$ 72,422
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	7,711	9,458	15,755	18,156
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	6,809	12,724	14,917	27,050
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	6,740	10,105	14,627	20,629
Service \| Cost of Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	2,436	2,345	5,100	4,313
Other revenue \| Cost of Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	$ 925	$ 1,203	$ 2,036	$ 2,274