Note 13 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangibles, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill	$ 2,642,000	$ 2,642,000	$ 2,643,000
Goodwill, acquisitions, dispositions, and adjustments	0	(1,000)
Goodwill, impairment	0	0
Broadcast licenses	5,309,000	5,311,000
Broadcast licenses, acquisitions, dispositions, and adjustments.	(1,000)	0
Broadcast licenses, impairment	$ (28,000)	0
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Total intangible assets net of accumulated amortization, impairment
Finite-lived intangible assets	$ 157,000	290,000	415,000
Finite-lived intangible assets, amortization	(104,000)	(125,000)	(194,000)
Total intangible assets net of accumulated amortization	8,108,000	8,243,000	8,378,000
Total intangible assets net of accumulated amortization, acquisitions, dispositions, and adjustments	(1,000)	(10,000)
Total intangible assets net of accumulated amortization, impairment	(30,000)	0	(43,000)	[1]
Broadcast Licenses [Member]
Broadcast licenses	5,309,000	5,311,000	$ 5,320,000
Broadcast licenses, acquisitions, dispositions, and adjustments.	0	$ (9,000)
Broadcast licenses, impairment	(2,000)
Total intangible assets net of accumulated amortization, impairment	$ (2,000)

[1] The significant expense categories and amounts align with the segment-level information that is regularly provided to the chief operating decision maker. Intersegment expenses are included within the amounts shown.