Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total net revenue	$ 41,987	$ 36,014	$ 121,099	$ 104,224
Revenue recognized	8,600	7,600	34,600	28,100
Transfers to accounts receivable	200	400	2,700	3,800
Capitalized contract cost, net	3,300		3,300
Capitalized Contract Cost, Amortization	300	300	1,000	800
Sales Commissions and Fees	1,300	1,300	3,500	3,100
Products
Disaggregation of Revenue [Line Items]
Total net revenue	12,126	10,232	34,868	28,081
Support, Maintenance, Subscription Services, And Professional Services [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 29,900	$ 25,800	$ 86,200	$ 76,100