Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total net revenue	$ 38,725	$ 29,807
Revenue recognized	17,400	17,500
Transfers to accounts receivable	2,200	1,400
Capitalized contract cost, net	2,900	3,200
Sales commissions and fees	700	600
Capitalized contract cost, amortization	300	400
Products [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	8,844	5,239
Support, Maintenance, Subscription Services, And Professional Services [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 29,900	$ 24,600