Redeemable Noncontrolling Interests (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2014 |
|
| Noncontrolling Interest [Line Items] | ||
| Distribution related to spin-off transaction | $ 8,233 | |
| Transfer from redeemable noncontrolling interest | $ 18,367 | |
| New Video (BBC AMERICA) | ||
| Noncontrolling Interest [Line Items] | ||
| Percentage of interest acquired | 49.90% | |
| New Video (BBC AMERICA) | Unnamed Subsidiary | ||
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling interest, ownership percentage by noncontrolling owners | 50.10% | |
| New Video (BBC AMERICA) | Unnamed Subsidiary | Maximum | ||
| Noncontrolling Interest [Line Items] | ||
| Put option, exercisable, term | 25 years | |
| New Video (BBC AMERICA) | Unnamed Subsidiary | Minimum | ||
| Noncontrolling Interest [Line Items] | ||
| Put option, exercisable, term | 15 years | |