Balance Sheet Components - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	$ 43,940	$ 39,861
Total deferred revenue, non-current	17,243	15,370
Total deferred revenue	61,183	55,231
Platform
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	21,204	18,234
Total deferred revenue, non-current	8,751	6,135
Player
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	22,736	21,627
Total deferred revenue, non-current	$ 8,492	$ 9,235