Revenues (Schedule of Effect of Adoption of ASU 2014-09 On Consolidated Statement of Operations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Net revenues
Net revenues	$ 983,142	$ 607,084	$ 519,834
Cost of revenues:
Total cost of revenues	448,625	276,127	254,431
Gross profit:
Total gross profit	534,517	330,957	265,403
Sales and marketing expenses	267,107	162,626	149,900
Operating loss	(38,210)	6,040	(30,029)
Net income (loss) before tax	(46,647)	2,596	(32,027)
Net income (loss)	$ (46,792)	$ (1,744)	$ (36,363)
Basic and diluted net loss per share
Net loss per share - basic	$ (0.41)	$ (0.02)	$ (0.35)
Net loss per share - diluted	$ (0.41)	$ (0.02)	$ (0.35)
Shares used in per share calculation - basic	114,221	108,273	103,074
Shares used in per share calculation - diluted	114,221	108,273	103,074
As Reported | ASU 2014-09
Net revenues
Net revenues		$ 598,118	$ 528,389
Cost of revenues:
Total cost of revenues		273,633	257,601
Gross profit:
Total gross profit		324,485	270,788
Sales and marketing expenses		167,927	150,806
Operating loss		(733)	(25,550)
Net income (loss) before tax		(4,177)	(27,548)
Net income (loss)		$ (8,517)	$ (31,884)
Basic and diluted net loss per share
Net loss per share - basic		$ (0.08)	$ (0.31)
Net loss per share - diluted		$ (0.08)	$ (0.31)
Shares used in per share calculation - basic		108,273	103,074
Shares used in per share calculation - diluted		108,273	103,074
Adjustment | ASU 2014-09
Net revenues
Net revenues		$ 8,966	$ (8,555)
Cost of revenues:
Total cost of revenues		2,494	(3,170)
Gross profit:
Total gross profit		6,472	(5,385)
Sales and marketing expenses		(301)	(906)
Operating loss		6,773	(4,479)
Net income (loss) before tax		6,773	(4,479)
Net income (loss)		$ 6,773	$ (4,479)
Basic and diluted net loss per share
Net loss per share - basic		$ 0.06	$ (0.04)
Net loss per share - diluted		$ 0.06	$ (0.04)
Shares used in per share calculation - basic		108,273	103,074
Shares used in per share calculation - diluted		108,273	103,074
Product
Net revenues
Net revenues	$ 764,455	$ 460,425	$ 386,909
Cost of revenues:
Total cost of revenues	357,062	220,221	205,569
Gross profit:
Total gross profit	407,393	240,204	181,340
Product | As Reported | ASU 2014-09
Net revenues
Net revenues		451,459	395,464
Cost of revenues:
Total cost of revenues		217,727	208,739
Gross profit:
Total gross profit		233,732	186,725
Product | Adjustment | ASU 2014-09
Net revenues
Net revenues		8,966	(8,555)
Cost of revenues:
Total cost of revenues		2,494	(3,170)
Gross profit:
Total gross profit		6,472	(5,385)
Service
Net revenues
Net revenues	218,687	146,659	132,925
Cost of revenues:
Total cost of revenues	91,563	55,906	48,862
Gross profit:
Total gross profit	$ 127,124	90,753	84,063
Service | As Reported | ASU 2014-09
Net revenues
Net revenues		146,659	132,925
Cost of revenues:
Total cost of revenues		55,906	48,862
Gross profit:
Total gross profit		$ 90,753	$ 84,063