Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Carrying amount:
Total carrying amount	$ 1,418,613	$ 1,417,693
Accumulated amortization:
Total accumulated amortization	(493,496)	(469,930)
Net amortizable intangible assets	925,117	947,763
Indefinite-lived intangible assets — FCC licenses	779,415	779,415
Total other intangible assets	1,704,532	1,727,178
Television affiliation relationships
Carrying amount:
Total carrying amount	1,060,244	1,060,244
Accumulated amortization:
Total accumulated amortization	(289,680)	(276,163)
Customer lists and advertiser relationships
Carrying amount:
Total carrying amount	220,997	220,997
Accumulated amortization:
Total accumulated amortization	(138,455)	(132,161)
Other
Carrying amount:
Total carrying amount	137,372	136,452
Accumulated amortization:
Total accumulated amortization	$ (65,361)	$ (61,606)