Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net loss:	$ (8,517)	$ (31,884)	$ (71,643)
Available for sale securities:
Change in unrealized losses on available for sale securities, net of taxes			(26)
Net change in foreign currency translation adjustments	572	(1,583)	(826)
Other comprehensive gain (loss), net of tax:	572	(1,583)	(852)
Total comprehensive loss	$ (7,945)	$ (33,467)	$ (72,495)