Goodwill and Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Broadcast licenses	$ 41,356,000	$ 41,356,000
Goodwill	231,710,000	165,597,000
Other intangibles	115,110,000	24,761,000
Total indefinite-lived intangibles	388,176,000	231,714,000
Goodwill impairment charge	0	1,700,000
Other finite lived intangible assets, impairment charge		$ 1,059,000
Customer relationship intangible assets
Other finite lived intangible assets, impairment charge	$ 1,100,000