Annual report pursuant to Section 13 and 15(d)

Revenue - Narrative (Details)

v3.21.1
Revenue - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]    
Deferred revenue recognized $ 4,568  
Remaining performance obligation $ 9,202  
Sales Revenue, Net | Fox Networks Group    
Disaggregation of Revenue [Line Items]    
Concentration risk (as a percent)   50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Percent of revenue expected to be recognized over next 12 months 41.00%  
Remaining performance obligation, expected timing 12 months  
United States    
Disaggregation of Revenue [Line Items]    
Derived over net revenues percentage 97.00% 99.00%