Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Total revenue	$ 909,918	$ 986,787	$ 1,162,112
Cost of revenue:
Total cost of revenue	254,127	271,905	346,139
Gross profit	655,791	714,882	815,973
Operating expenses:
Research and development (related party balances of $20, $3, and $1,624, respectively)	203,588	215,076	232,701
Sales and marketing (related party balances of $0, $2, and $2,423, respectively)	291,870	312,536	328,628
General and administrative (related party balances of $20, $1,703, and $4,099, respectively)	93,572	109,479	118,438
Amortization of acquired intangible assets	74,305	76,640	70,141
Restructuring charges	18,693	5,209	4,001
Impairment of intangible assets	35,871	0	0
Loss on divestiture of business	9,472	0	0
Total operating expenses	727,371	718,940	753,909
Income (loss) from operations	(71,580)	(4,058)	62,064
Interest and other income (expense), net:
Interest income	5,245	1,808	1,021
Interest expense	(26,143)	(12,633)	(9,184)
Other expense, net (related party balances of $0, $56, and $426, respectively)	(434)	(3,776)	(1,716)
Total interest and other expense, net	(21,332)	(14,601)	(9,879)
Income (loss) before income tax expense (benefit)	(92,912)	(18,659)	52,185
Income tax expense (benefit)	(19,588)	(98,471)	18,894
Net income (loss)	$ (73,324)	$ 79,812	$ 33,291
Basic net income (loss) per share (in dollars per share)	$ (0.93)	$ 0.91	$ 0.36
Diluted net income (loss) per share (in dollars per share)	$ (0.93)	$ 0.90	$ 0.36
Weighted average common shares outstanding used in computing:
Net income (loss) per share-basic (in shares)	78,617	87,425	92,226
Net income (loss) per share-diluted (in shares)	78,617	88,261	92,920
Product
Revenue:
Total revenue	$ 467,289	$ 520,418	$ 715,404
Cost of revenue:
Total cost of revenue	140,938	158,628	233,275
Service
Revenue:
Total revenue	442,629	466,369	446,708
Cost of revenue:
Total cost of revenue	$ 113,189	$ 113,277	$ 112,864