Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	[1]	Mar. 31, 2019	Mar. 31, 2018	[1]
Statement of Comprehensive Income [Abstract]
Net loss	$ (7,481)	$ (14,457)	[2]	$ (19,632)	$ (33,369)	[2],[3]
Other comprehensive income (loss):
Foreign currency translation adjustment, net of tax	(54)	392		(402)	957
Available-for-sale securities:
Unrealized gain (loss) on available-for-sale securities, net of tax	328	(353)		514	(566)
Reclassification adjustments for gain on available-for-sale securities recognized, net of tax	13	46		20	52
Net increase (decrease) from available-for-sale securities, net of tax	341	(307)		534	(514)
Other comprehensive income (loss), net of tax	287	85		132	443
Comprehensive loss	$ (7,194)	$ (14,372)		$ (19,500)	$ (32,926)

[1] See Note 1 for a summary of adjustments.

[2] See Note 1 for a summary of adjustments.

[3] See Note 1 for a summary of adjustments.