Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Carrying amount:
Total carrying amount	$ 1,417,341	$ 1,417,341
Accumulated amortization:
Total accumulated amortization	(422,884)	(375,902)
Net amortizable intangible assets	994,457	1,041,439
Indefinite-lived intangible assets — FCC licenses	779,815	779,815
Total other intangible assets	1,774,272	1,821,254
Television affiliation relationships
Carrying amount:
Total carrying amount	1,060,244	1,060,244
Accumulated amortization:
Total accumulated amortization	(249,127)	(222,092)
Customer lists and advertiser relationships
Carrying amount:
Total carrying amount	220,997	220,997
Accumulated amortization:
Total accumulated amortization	(119,313)	(106,654)
Other
Carrying amount:
Total carrying amount	136,100	136,100
Accumulated amortization:
Total accumulated amortization	$ (54,444)	$ (47,156)