Balance Sheet Components - Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jul. 01, 2019	Jun. 30, 2019
Other Assets [Abstract]
Operating lease right-of-use asset	$ 25,304	$ 14,800	$ 0
Deferred service costs, non-current	4,413		3,572
Prepaid expense, non-current	1,615		1,649
Restricted cash, non-current	1,601		2,303
Investment in auction rate security	1,571		1,571
Deposits	1,206		686
Non-marketable equity securities	128		878
Total other assets	$ 35,838		$ 10,659