Recent Accounting Pronouncements - Schedule of Effect of Adoption of ASU 2014-09 On Condensed Consolidated Statement of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net revenues:
Product	$ 174,850	$ 118,055	$ 339,624	$ 208,148
Service	56,273	38,322	103,214	70,833
Total net revenues	231,123	156,377	442,838	278,981
Cost of revenues:
Product	78,472	62,627	158,517	106,876
Service	23,665	14,098	42,954	26,567
Total cost of revenues	102,137	76,725	201,471	133,443
Gross profit:
Product	96,378	55,428	181,107	101,272
Service	32,608	24,224	60,260	44,266
Total gross profit	128,986	79,652	241,367	145,538
Sales and marketing	65,659	41,025	121,220	77,884
Operating loss	(31,110)	(2,980)	(26,618)	(7,002)
Net loss before tax	(33,540)	(3,050)	(27,489)	(7,885)
Net loss	$ (31,923)	$ (4,229)	$ (27,547)	$ (9,971)
Basic and diluted net loss per share
Net loss per share - basic	$ (0.28)	$ (0.04)	$ (0.24)	$ (0.09)
Net loss per share - diluted	$ (0.28)	$ (0.04)	$ (0.24)	$ (0.09)
Shares used in per share calculation - basic	113,621	107,425	112,931	106,690
Shares used in per share calculation - diluted	113,621	107,425	112,931	106,690
As Reported
Net revenues:
Product		$ 109,789		$ 199,920
Service		38,322		70,833
Total net revenues		148,111		270,753
Cost of revenues:
Product		58,659		103,586
Service		14,098		26,567
Total cost of revenues		72,757		130,153
Gross profit:
Product		51,130		96,334
Service		24,224		44,266
Total gross profit		75,354		140,600
Sales and marketing		41,109		78,065
Operating loss		(7,362)		(12,121)
Net loss before tax		(7,432)		(13,004)
Net loss		$ (8,611)		$ (15,090)
Basic and diluted net loss per share
Net loss per share - basic		$ (0.08)		$ (0.14)
Net loss per share - diluted		$ (0.08)		$ (0.14)
Shares used in per share calculation - basic		107,425		106,690
Shares used in per share calculation - diluted		107,425		106,690
Adjustment | ASU 2014-09
Net revenues:
Product		$ 8,266		$ 8,228
Total net revenues		8,266		8,228
Cost of revenues:
Product		3,968		3,290
Total cost of revenues		3,968		3,290
Gross profit:
Product		4,298		4,938
Total gross profit		4,298		4,938
Sales and marketing		(84)		(181)
Operating loss		4,382		5,119
Net loss before tax		4,382		5,119
Net loss		$ 4,382		$ 5,119