Goodwill and Intangible Assets - Other Amortizable Intangible (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020
Changes in other amortizable intangible assets
Net balance at the beginning of the period			$ 15,901
Amortization	$ (1,600)	$ (1,800)	(3,529)	$ (5,100)
Net balance at the end of the period	12,372		12,372
Future estimated amortization expense
Remainder of 2020					$ 3,239
2021					6,424
2022					1,766
2023					328
2024 and thereafter					615
Total	12,372		$ 12,372		12,372
Weighted Average
Changes in other amortizable intangible assets
Remaining amortization period			2 years 3 months 18 days
Affiliate relationships
Changes in other amortizable intangible assets
Net balance at the beginning of the period			$ 14,352
Amortization			(2,994)
Net balance at the end of the period	11,358		11,358
Future estimated amortization expense
Total	11,358		11,358		11,358
Advertiser relationships
Changes in other amortizable intangible assets
Net balance at the beginning of the period			138
Amortization			(138)
Future estimated amortization expense
Total			138
Non-compete agreement
Changes in other amortizable intangible assets
Net balance at the beginning of the period			826
Amortization			(317)
Net balance at the end of the period	509		509
Future estimated amortization expense
Total	509		509		509
Other intangibles
Changes in other amortizable intangible assets
Net balance at the beginning of the period			68
Amortization			(35)
Net balance at the end of the period	33		33
Future estimated amortization expense
Total	33		33		33
Programming contracts
Changes in other amortizable intangible assets
Net balance at the beginning of the period			517
Amortization			(45)
Net balance at the end of the period	472		472
Future estimated amortization expense
Total	$ 472		$ 472		$ 472