Note 14 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue		$ 3,095,000	$ 3,644,000	$ 3,281,000
Payroll and employee benefits	[1]	$ 946,000	$ 971,000	$ 940,000
Entertainment, License Agreement for Program Material, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amortization of intangible assets	Amortization of intangible assets	Amortization of intangible assets
Network affiliation fees	[1]	$ 882,000	$ 932,000	$ 937,000
Programming	[1]	133,000	128,000	123,000
Depreciation and amortization	[1]	237,000	269,000	339,000
Other segment items	[1],[2]	505,000	493,000	516,000
Impairment of goodwill, broadcast licenses and other intangible assets		30,000	0	43,000	[1]
Segment operating income (loss)		392,000	851,000	383,000
Miscellaneous income, net		(1,000)	117,000	7,000
Impairment of investments		(20,000)	(25,000)	(29,000)
Interest expense		(474,000)	(485,000)	(440,000)
Gain on early extinguishment of debt		(10,000)	34,000	(3,000)
Loss before income tax		(113,000)	492,000	(82,000)
Capital expenditures (excluding business combinations)		108,000	143,000	348,000
(Loss) gain from early extinguishment of debt		(10,000)	34,000	(3,000)
Goodwill		2,642,000	2,642,000	2,643,000
Investments in broadcasting and technology companies		37,000	66,000	85,000
Total assets		10,440,000	10,542,000	10,640,000
Broadcasting, Segment [Member]
Revenue		2,988,000	3,539,000	3,195,000
Production Companies, Segment [Member]
Revenue		107,000	105,000	86,000
Other Operating Segment [Member]
Revenue		0	0	0
Payroll and employee benefits	[1]	60,000	55,000	54,000
Network affiliation fees	[1]	0	0	0
Programming	[1]	0	0	0
Depreciation and amortization	[1]	2,000	2,000	4,000
Other segment items	[1],[2]	53,000	49,000	58,000
Impairment of goodwill, broadcast licenses and other intangible assets	[1]			0
Segment operating income (loss)		(115,000)	(106,000)	(116,000)
Interest expense			(485,000)
Gain on early extinguishment of debt				(3,000)
Capital expenditures (excluding business combinations)		0	0	1,000
(Loss) gain from early extinguishment of debt				(3,000)
Goodwill		0	0	0
Investments in broadcasting and technology companies		13,000	13,000	13,000
Total assets		467,000	225,000	85,000
Operating Segments [Member] | Broadcasting, Segment [Member]
Revenue		2,988,000	3,539,000	3,195,000
Payroll and employee benefits	[1]	864,000	892,000	865,000
Network affiliation fees	[1]	882,000	932,000	937,000
Programming	[1]	116,000	108,000	98,000
Depreciation and amortization	[1]	215,000	248,000	322,000
Other segment items	[1],[2]	398,000	403,000	386,000
Impairment of goodwill, broadcast licenses and other intangible assets	[1]			0
Segment operating income (loss)		513,000	956,000	587,000
Miscellaneous income, net			117,000	7,000
Impairment of investments				(29,000)
Loss before income tax				(82,000)
Capital expenditures (excluding business combinations)		74,000	97,000	107,000
Goodwill		2,614,000	2,614,000	2,615,000
Investments in broadcasting and technology companies		23,000	49,000	68,000
Total assets		9,326,000	9,636,000	9,897,000
Operating Segments [Member] | Production Companies, Segment [Member]
Revenue		107,000	105,000	86,000
Payroll and employee benefits	[1]	22,000	24,000	21,000
Network affiliation fees	[1]	0	0	0
Programming	[1]	17,000	20,000	25,000
Depreciation and amortization	[1]	20,000	19,000	13,000
Other segment items	[1],[2]	54,000	41,000	72,000
Impairment of goodwill, broadcast licenses and other intangible assets	[1]			43,000
Segment operating income (loss)		(6,000)	1,000	(88,000)
Impairment of investments			(25,000)
Interest expense				(440,000)
Capital expenditures (excluding business combinations)		34,000	46,000	240,000
Goodwill		28,000	28,000	28,000
Investments in broadcasting and technology companies		1,000	4,000	4,000
Total assets		$ 647,000	$ 681,000	$ 658,000

[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.

[2] Other segment items for each reportable segment includes; (gain) loss on disposal of assets, impairment of goodwill and intangible assets, professional services expense, repairs and maintenance expense, occupancy expense (including property tax expense), and certain overhead expenses.