Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statements of Income
Net revenues (note 2)	$ 2,207,103	$ 2,110,987	$ 2,032,140
Operating expenses (income):
Direct advertising expenses (exclusive of depreciation and amortization)	727,875	696,799	667,288
General and administrative expenses (exclusive of depreciation and amortization)	361,133	344,780	350,623
Corporate expenses (exclusive of depreciation and amortization)	129,145	106,025	102,500
Depreciation and amortization (note 11)	462,967	293,423	349,449
Gain on disposition of assets	(6,057)	(5,474)	(15,721)
Total operating expenses	1,675,063	1,435,553	1,454,139
Operating income	532,040	675,434	578,001
Other expense (income):
Loss on extinguishment of debt	270	115	0
Interest income	(2,315)	(2,115)	(1,293)
Interest expense	171,709	174,512	127,510
Equity in earnings of investee	(5,094)	(3,696)	(4,315)
Total other expense (income)	164,570	168,816	121,902
Income before income tax expense	367,470	506,618	456,099
Income tax expense (note 12)	4,531	9,782	17,452
Net income	362,939	496,836	438,647
Earnings attributable to non-controlling interest	1,072	1,073	0
Net income attributable to controlling interest	361,867	495,763	438,647
Preferred stock dividends	365	365	365
Net income applicable to common stock	$ 361,502	$ 495,398	$ 438,282
Earnings per share:
Basic earnings per share (in usd per share)	$ 3.54	$ 4.86	$ 4.32
Diluted earnings per share (in usd per share)	3.52	4.85	4.31
Cash dividends declared per share of common stock (in usd per share)	$ 5.65	$ 5.00	$ 5.00
Weighted average common shares used in computing earnings per share:
Weighted average number of shares outstanding basic (in shares)	102,258,760	101,920,268	101,527,778
Weighted average common shares outstanding diluted (in shares)	102,561,151	102,106,647	101,634,543
Statements of Comprehensive Income
Net income	$ 362,939	$ 496,836	$ 438,647
Other comprehensive (loss) income, net of tax
Foreign currency translation adjustments	(2,526)	231	(1,514)
Comprehensive income	360,413	497,067	437,133
Earnings attributable to non-controlling interest	1,072	1,073	0
Comprehensive income attributable to controlling interest	$ 359,341	$ 495,994	$ 437,133