Balance Sheet Components - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	$ 45,559	$ 55,465
Total deferred revenue, non-current	23,420	21,283
Total deferred revenue	68,979	76,748
Platform
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	22,140	27,587
Total deferred revenue, non-current	10,175	9,909
Player
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	23,419	27,878
Total deferred revenue, non-current	$ 13,245	$ 11,374