Program Rights (Amortization of Owned and Licensed Program Rights) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Owned original program rights
Predominantly Monetized Individually	$ 74,597	$ 235,868
Predominantly Monetized as a Group	11,854	27,831
Total	86,451	263,699
Licensed program rights
Predominantly Monetized Individually	20,479	61,741
Predominantly Monetized as a Group	100,019	296,764
Total	120,498	358,505
Predominantly Monetized Individually	95,076	297,609
Predominantly Monetized as a Group	111,873	324,595
Total	$ 206,949	$ 622,204