Goodwill and Other Intangible Assets (Schedule of Finite and Indefinite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross	$ 802,980	$ 806,976
Accumulated Amortization	(434,174)	(427,442)
Net	368,806	379,534
Trademarks	19,900	19,900
Total intangible assets, gross	822,880	826,876
Total intangible assets, net	388,706	399,434
Affiliate and customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	645,838	649,543
Accumulated Amortization	(359,436)	(354,673)
Net	$ 286,402	294,870
Affiliate and customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (in years)	6 years
Affiliate and customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (in years)	25 years
Advertiser relationships
Finite-Lived Intangible Assets [Line Items]
Gross	$ 46,282	46,282
Accumulated Amortization	(31,287)	(30,235)
Net	$ 14,995	16,047
Estimated useful lives (in years)	11 years
Trade names and other amortizable intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross	$ 110,860	111,151
Accumulated Amortization	(43,451)	(42,534)
Net	$ 67,409	$ 68,617
Trade names and other amortizable intangible assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (in years)	3 years
Trade names and other amortizable intangible assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (in years)	20 years