Consolidated Statements of Operations - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue (less agency commissions)	$ 3,676,000	$ 2,413,000	$ 2,381,000
Operating expenses before depreciation, amortization, and (gain) loss on disposals of assets, net:
Depreciation	129,000	104,000	96,000
Amortization of intangible assets	207,000	117,000	105,000
(Gain) loss on disposal of assets, net	(2,000)	42,000	(29,000)
Operating expenses, net	2,686,000	2,032,000	1,629,000
Operating income	990,000	381,000	752,000
Other expense:
Miscellaneous expense, net	(4,000)	(8,000)	(5,000)
Impairment of investment	(18,000)	0	0
Interest expense	(354,000)	(205,000)	(191,000)
Loss on early extinguishment of debt	0	0	(12,000)
Income before income taxes	614,000	168,000	544,000
Income tax expense	159,000	78,000	134,000
Net income	455,000	90,000	410,000
Preferred stock dividends	52,000	52,000	52,000
Net income attributable to common stockholders	$ 403,000	$ 38,000	$ 358,000
Basic per share information:
Net income attributable to common stockholders (in dollars per share)	$ 4.38	$ 0.40	$ 3.73
Weighted average shares outstanding (in shares)	92	95	96
Diluted per share information:
Net income attributable to common stockholders (in dollars per share)	$ 4.33	$ 0.40	$ 3.69
Weighted average shares outstanding (in shares)	93	95	97
Dividends declared per common share (in dollars per share)	$ 0.32	$ 0.32	$ 0
Broadcasting, Segment [Member]
Revenue (less agency commissions)	$ 3,583,000	$ 2,340,000	$ 2,320,000
Operating expenses before depreciation, amortization, and (gain) loss on disposals of assets, net:
Cost of goods and services sold	2,165,000	1,548,000	1,340,000
Operating expenses, net	2,484,000	1,795,000	1,495,000
Operating income	1,099,000	545,000	825,000
Other expense:
Interest expense	0	0	0
Production Companies, Segment [Member]
Revenue (less agency commissions)	93,000	73,000	61,000
Operating expenses before depreciation, amortization, and (gain) loss on disposals of assets, net:
Cost of goods and services sold	83,000	62,000	52,000
Operating expenses, net	95,000	74,000	66,000
Operating income	(2,000)	(1,000)	(5,000)
Other expense:
Interest expense	0	0	0
Other Segments [Member]
Operating expenses before depreciation, amortization, and (gain) loss on disposals of assets, net:
Corporate and administrative	104,000	159,000	65,000
Depreciation	129,000	104,000	96,000
Amortization of intangible assets	$ 207,000	$ 117,000	$ 105,000