Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total net revenue	$ 39,460	$ 36,675	$ 116,078	$ 100,840
Revenue recognized	7,500	9,100	36,900	38,100
Transfers to accounts receivable	100	100	2,300	1,800
Capitalized contract cost, net	3,100		3,100		$ 2,900
Sales commissions and fees	600	700	1,800	2,000
Capitalized contract cost, amortization	300	300	900	1,100
Products [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	8,101	7,599	24,244	19,396
Support, Maintenance, Subscription Services, And Professional Services [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 31,400	$ 29,100	$ 91,800	$ 81,400