Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Total net revenue	$ 34,360	$ 40,722	$ 64,166	$ 79,111
Revenue recognized	12,100	10,500	30,500	26,000
Transfers to accounts receivable	200	400	1,700	2,400
Capitalized contract cost, net	3,100	3,400	3,100	3,400
Capitalized Contract Cost, Amortization	400	300	700	700
Sales Commissions and Fees	700	1,200	1,300	2,200
Products
Disaggregation of Revenue [Line Items]
Total net revenue	6,559	11,873	11,798	22,742
Support, Maintenance, Subscription Services, And Professional Services [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 27,800	$ 52,400	$ 28,800	$ 56,400