Balance Sheet Components - Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Other Assets, Noncurrent Disclosure [Abstract]
Long-term deferred service costs	$ 2,742	$ 3,498
Restricted cash	2,190	1,851
Investments in privately held companies	8,124	1,411
Deposits	258	910
Prepaid royalty license	561	748
Others	165	128
Total other assets	$ 14,040	$ 8,546