STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Stock-Based Compensation Expense By Statement Of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	$ 27,814	$ 36,587
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	8,044	8,698
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	8,107	14,326
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	7,888	10,524
Service | Cost of Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	2,664	1,968
Other revenue | Cost of Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation expense	$ 1,111	$ 1,071