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Balance Sheet Components - Other Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jul. 01, 2019
Jun. 30, 2019
Other Assets [Abstract]      
Operating lease right-of-use asset $ 12,568 $ 14,800  
Deferred service costs, non-current 3,956   $ 3,572
Restricted cash, non-current 2,333   2,303
Investment in auction rate security 1,571   1,571
Deposits 565   686
Non-marketable equity securities 128   878
Prepaid expense, non-current 1,597   1,649
Total other assets $ 22,718   $ 10,659