Goodwill and Intangible Assets - Indefinite Lived Net Balance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Changes in other indefinite-lived intangible assets
Impairment	$ 1,725
Changes in the goodwill
Net balance at the beginning of the period	167,322
Impairment	(1,059)
Net balance at the end of the period	165,597	$ 167,322
Changes in the goodwill and other indefinite lived intangible assets, on a net basis
Net balance at the beginning of the period	225,364	228,036
Additions		(2,672)
Impairment	1,725
Net balance at the end of the period	223,639	225,364
Broadcast licenses
Changes in other indefinite-lived intangible assets
Net balance at the beginning of the period	41,356	41,356
Net balance at the end of the period	41,356	41,356
Goodwill
Changes in the goodwill
Net balance at the beginning of the period	167,322	169,994
Additions		(2,672)
Impairment	(1,725)
Net balance at the end of the period	165,597	167,322
Brands
Changes in other indefinite-lived intangible assets
Net balance at the beginning of the period	15,986	15,986
Net balance at the end of the period	15,986	15,986
Changes in the goodwill
Net balance at the beginning of the period	15,986
Net balance at the end of the period		15,986
Other intangibles
Changes in other indefinite-lived intangible assets
Net balance at the beginning of the period	700	700
Net balance at the end of the period	$ 700	$ 700