REVENUE FROM CONTRACTS WITH CUSTOMERS: Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 528,657	$ 443,026	$ 380,572
Subscription
Disaggregation of Revenue [Line Items]
Revenues	428,617	356,597	305,679
Marketplace and Other
Disaggregation of Revenue [Line Items]
Revenues	100,040	86,429	74,893
United States
Disaggregation of Revenue [Line Items]
Revenues	495,765	415,976	354,437
Europe
Disaggregation of Revenue [Line Items]
Revenues	26,373	22,515	20,789
Asia-Pacific ("APAC")
Disaggregation of Revenue [Line Items]
Revenues	$ 6,519	$ 4,535	$ 5,346