Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Product	$ 114,822	$ 164,589
Service	110,934	104,363
Total revenue	225,756	268,952
Cost of revenue:
Product (related party balances of $245 and $4,577, respectively)	37,845	59,827
Service (related party balances of $29 and $190, respectively)	28,717	27,207
Total cost of revenue	66,562	87,034
Gross profit	159,194	181,918
Operating expenses:
Research and development (related party balances of $3 and $1,026, respectively)	58,966	60,551
Sales and marketing (related party balances of $2 and $1,600, respectively)	85,361	81,588
General and administrative (related party balances of $244 and $1,504, respectively)	29,872	30,927
Amortization of acquired intangible assets	18,383	17,572
Restructuring charges	167	2,034
Total operating expenses	192,749	192,672
Loss from operations	(33,555)	(10,754)
Interest and other expense, net:
Interest income	480	191
Interest expense	(2,550)	(2,331)
Other expense	(1,065)	(764)
Total interest and other expense, net	(3,135)	(2,904)
Loss before income tax expense	(36,690)	(13,658)
Income tax benefit	(12,468)	(4,660)
Net loss	$ (24,222)	$ (8,998)
Basic net loss per share (in USD per share)	$ (0.27)	$ (0.10)
Diluted net loss per share (in USD per share)	$ (0.27)	$ (0.10)
Weighted average common shares outstanding used in computing:
Net loss per share - basic (in shares)	91,180	93,344
Net loss per share - diluted (in shares)	91,180	93,344