The Company and Summary of Significant Accounting Policies - Revenue Recognition (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2016
item
| |
| Consumable virtual goods, immaterial revenue (in years) | 3 years |
| Estimated average useful life of paying user | 3 months |
| Number of games, longer paying user | 8 |
| Minimum | |
| Estimated average useful life of paying user | 4 months |
| Maximum | |
| Estimated average useful life of paying user | 7 months |