Consolidated Statements of Operations - 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:
Total revenue	$ 205,339	$ 216,421	$ 389,154	$ 402,445
Cost of revenue:
Total cost of revenue	58,900	59,132	111,880	113,875
Gross profit	146,439	157,289	277,274	288,570
Operating expenses:
Research and development	46,455	50,058	91,836	93,785
Sales and marketing	60,300	73,067	119,734	146,592
General and administrative	20,573	25,177	45,726	47,388
Amortization of acquired intangible assets	15,363	16,132	30,624	32,275
Restructuring charges	(31)	150	62	273
Total operating expenses	142,660	164,584	287,982	320,313
Income (loss) from operations	3,779	(7,295)	(10,708)	(31,743)
Interest and other expense, net:
Interest income	171	1,214	437	2,872
Interest expense	(2,715)	(5,173)	(5,789)	(11,538)
Other income (expense), net	(850)	343	(2,822)	651
Total interest and other expense, net	(3,394)	(3,616)	(8,174)	(8,015)
Income (loss) before income tax expense	385	(10,911)	(18,882)	(39,758)
Income tax expense	4,071	6,561	2,224	7,057
Net loss	$ (3,686)	$ (17,472)	$ (21,106)	$ (46,815)
Basic net loss per share (in dollars per share)	$ (0.05)	$ (0.23)	$ (0.29)	$ (0.61)
Diluted net loss per share (in dollars per share)	$ (0.05)	$ (0.23)	$ (0.29)	$ (0.61)
Weighted average common shares outstanding used in computing:
Net loss per share - basic (in shares)	73,058	75,687	72,682	76,490
Net loss per share - diluted (in shares)	73,058	75,687	72,682	76,490
Product
Revenue:
Total revenue	$ 91,979	$ 102,775	$ 163,672	$ 178,494
Cost of revenue:
Total cost of revenue	26,977	29,368	48,129	56,303
Service
Revenue:
Total revenue	113,360	113,646	225,482	223,951
Cost of revenue:
Total cost of revenue	$ 31,923	$ 29,764	$ 63,751	$ 57,572