Intangible Assets (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Finite-Lived Intangible Assets, Accumulated Amortization Activity [Roll Forward]
Accumulated Amortization, beginning balance	$ (42,450)
Amortization Expense	(4,936)
Dispositions	45
Accumulated amortization, ending balance	(47,341)
Intangible Assets Activity [Roll Forward]
Beginning balance	1,037,323
Dispositions	(100)
Ending balance	1,037,223
Net Book Value	989,882
FCC licenses
Indefinite-lived Intangible Assets [Roll Forward]
Beginning balance	830,490
Dispositions	(52)
Ending balance	830,438
Net Book Value	830,438
Trademarks
Indefinite-lived Intangible Assets [Roll Forward]
Beginning balance	19,921
Dispositions	(2)
Ending balance	19,919
Net Book Value	19,919
Affiliate and producer relationships
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	130,000
Dispositions	0
Ending balance	130,000
Finite-Lived Intangible Assets, Accumulated Amortization Activity [Roll Forward]
Accumulated Amortization, beginning balance	(18,712)
Amortization Expense	(2,955)
Dispositions	0
Accumulated amortization, ending balance	(21,667)
Net Book Value	108,333
Broadcast advertising
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	32,000
Dispositions	0
Ending balance	32,000
Finite-Lived Intangible Assets, Accumulated Amortization Activity [Roll Forward]
Accumulated Amortization, beginning balance	(10,133)
Amortization Expense	(1,600)
Dispositions	0
Accumulated amortization, ending balance	(11,733)
Net Book Value	20,267
Tower income contracts
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	13,721
Dispositions	(1)
Ending balance	13,720
Finite-Lived Intangible Assets, Accumulated Amortization Activity [Roll Forward]
Accumulated Amortization, beginning balance	(2,414)
Amortization Expense	(381)
Dispositions	0
Accumulated amortization, ending balance	(2,795)
Net Book Value	10,925
Other
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	11,191
Dispositions	(45)
Ending balance	11,146
Finite-Lived Intangible Assets, Accumulated Amortization Activity [Roll Forward]
Accumulated Amortization, beginning balance	(11,191)
Amortization Expense	0
Dispositions	45
Accumulated amortization, ending balance	(11,146)
Net Book Value	$ 0