Program Rights (Amortization of Owned and Licensed Program Rights) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Owned original program rights
Predominantly Monetized Individually	$ 50,921	$ 62,229	$ 84,827	$ 161,271
Predominantly Monetized as a Group	7,571	9,458	12,137	15,977
Total	58,492	71,687	96,964	177,248
Licensed program rights
Predominantly Monetized Individually	20,865	19,910	45,885	41,262
Predominantly Monetized as a Group	103,004	99,678	190,499	196,745
Total	123,869	119,588	236,384	238,007
Predominantly Monetized Individually	71,786	82,139	130,712	202,533
Predominantly Monetized as a Group	110,575	109,136	202,636	212,722
Total	$ 182,361	$ 191,275	$ 333,348	$ 415,255