Summary of Significant Accounting Policies - Goodwill, Intangible Assets and Other Long-Lived Assets (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2019
reporting_unit
| |
| Property and Equipment [Line Items] | |
| Number of reporting units | 1 |
| Minimum | |
| Property and Equipment [Line Items] | |
| Useful Life | 4 years |
| Maximum | |
| Property and Equipment [Line Items] | |
| Useful Life | 10 years |