Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (35,321)	$ (23,063)	$ (29,524)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax	(512)	(1,698)	51
Unrealized gain (loss) on available-for-sale securities, net of tax	272	(156)	284
Reclassification adjustments for gain (loss) on available-for-sale securities recognized, net of tax	13	(262)	(132)
Net increase (decrease) from available-for-sale securities, net of tax	285	(418)	152
Other comprehensive income (loss), net of tax	(227)	(2,116)	203
Comprehensive loss	$ (35,548)	$ (25,179)	$ (29,321)