CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Revenue	$ 85,821	$ 105,789	$ 159,126	$ 211,419
Cost of revenue:
Cost of revenue	47,087	62,266	89,540	122,070
Gross profit	38,734	43,523	69,586	89,349
Operating expenses:
Research and development	10,233	9,350	24,723	17,733
Sales and marketing	13,153	14,824	21,825	30,680
General and administrative	10,263	14,329	20,395	32,905
Restructuring charges	1,585	821	2,637	1,084
Total operating expenses	35,234	39,324	69,580	82,402
Income from operations	3,500	4,199	6	6,947
Other income (expense), net	(312)	76	(697)	165
Interest expense	(7,578)	(6,347)	(14,015)	(12,653)
Net loss before income taxes	(4,390)	(2,072)	(14,706)	(5,541)
Income tax provision	202	243	622	581
Net loss	$ (4,592)	$ (2,315)	$ (15,328)	$ (6,122)
Net loss per share - basic and diluted (in dollars per share)	$ (0.11)	$ (0.06)	$ (0.38)	$ (0.17)
Weighted average shares - basic and diluted (in shares)	40,286	36,297	40,097	36,172
Foreign currency translation adjustments, net	$ 722	$ (474)	$ 1,009	$ (390)
Total comprehensive loss	(3,870)	(2,789)	(14,319)	(6,512)
Product
Revenue:
Revenue	50,850	68,130	90,537	133,926
Cost of revenue:
Cost of revenue	34,998	49,467	65,380	96,666
Service
Revenue:
Revenue	31,494	32,401	61,880	65,781
Cost of revenue:
Cost of revenue	12,089	12,799	24,160	25,404
Royalty
Revenue:
Revenue	$ 3,477	$ 5,258	$ 6,709	$ 11,712