Revenue Recognition - Narrative (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 162,636,000	$ 137,176,000	$ 160,757,000
Revenue recognized	38,100,000	40,900,000
Transfers to accounts receivable	2,400,000	2,000.0
Capitalized contract cost, net	3,300,000	2,900,000
Sales commissions and fees	2,500,000	2,800,000
Capitalized contract cost, amortization	1,200,000	1,400,000
Products [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	35,956,000	26,714,000	44,230,000
Support, Maintenance, Subscription Services, and Professional Services [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 126,700,000	$ 110,500,000	$ 116,500,000