STOCK-BASED COMPENSATION: Effect of Stock-based Compensation Expense on Income, by Financial Statement Line Item (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-based compensation
Total non-cash stock-based compensation	$ 24,225	$ 18,496
Cost of revenue
Share-based compensation
Total non-cash stock-based compensation	1,163	790
Research and development
Share-based compensation
Total non-cash stock-based compensation	11,656	5,348
Sales and marketing
Share-based compensation
Total non-cash stock-based compensation	5,884	6,793
General and administrative
Share-based compensation
Total non-cash stock-based compensation	$ 5,522	$ 5,565