Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statements of Income
Net revenues	$ 542,609	$ 527,390	$ 1,555,078	$ 1,496,630
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	175,188	168,968	515,403	493,463
General and administrative expenses (exclusive of depreciation and amortization)	81,283	87,181	256,943	260,923
Corporate expenses (exclusive of depreciation and amortization)	24,248	24,474	81,331	74,077
Depreciation and amortization	74,636	65,833	222,919	202,210
Gain on disposition of assets	(879)	(53)	(5,243)	(1,990)
Total operating expenses	354,476	346,403	1,071,353	1,028,683
Operating income	188,133	180,987	483,725	467,947
Other expense (income)
Loss on extinguishment of debt	115	0	115	0
Interest income	(621)	(248)	(1,559)	(742)
Interest expense	45,070	33,545	130,163	89,824
Equity in earnings of investee	(699)	(1,554)	(1,326)	(2,655)
Total other (income) expense	43,865	31,743	127,393	86,427
Income before income tax expense	144,268	149,244	356,332	381,520
Income tax expense	3,843	3,056	8,821	8,976
Net income	140,425	146,188	347,511	372,544
Earnings attributable to non-controlling interest	408	0	833	0
Net income attributable to controlling interest	140,017	146,188	346,678	372,544
Cash dividends declared and paid on preferred stock	91	91	273	273
Net income applicable to common stock	$ 139,926	$ 146,097	$ 346,405	$ 372,271
Earnings per share:
Basic earnings per share (in dollars per share)	$ 1.37	$ 1.44	$ 3.40	$ 3.67
Diluted earnings per share (in dollars per share)	1.37	1.44	3.39	3.66
Cash dividends declared per share of common stock (in dollars per share)	$ 1.25	$ 1.20	$ 3.75	$ 3.50
Weighted average common shares used in computing earnings per share:
Weighted average common shares outstanding basic (in shares)	101,960,356	101,580,997	101,890,573	101,469,918
Weighted average common shares outstanding diluted (in shares)	102,130,614	101,685,965	102,085,016	101,599,157
Statements of Comprehensive Income
Net income	$ 140,425	$ 146,188	$ 347,511	$ 372,544
Other comprehensive loss
Foreign currency translation adjustments	(643)	(1,401)	(242)	(1,770)
Comprehensive income	139,782	144,787	347,269	370,774
Earnings attributable to non-controlling interest	408	0	833	0
Comprehensive income attributable to controlling interest	$ 139,374	$ 144,787	$ 346,436	$ 370,774