The Company and Summary of Significant Accounting Policies - Useful Lives (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2016 | |
| Computer equipment [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Property plant and Equipment useful life | 3 years |
| Software [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Property plant and Equipment useful life | 3 years |
| Furniture and fixtures [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Property plant and Equipment useful life | 3 years |