Basis of Presentation and Summary of Significant Accounting Policies - Licensed Programming and Digital Content Costs (Details) |
3 Months Ended |
|---|---|
Mar. 31, 2021 | |
| Basis of Presentation and Summary of Significant Accounting Policies | |
| License programming costs, amortization period | 2 years |
| License programming costs, initial amortization, percent | 50.00% |