Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statements of Income
Net revenues	$ 565,251	$ 541,137	$ 1,063,401	$ 1,012,469
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	183,265	171,783	358,910	340,215
General and administrative expenses (exclusive of depreciation and amortization)	88,341	90,525	177,502	175,660
Corporate expenses (exclusive of depreciation and amortization)	33,051	28,556	68,755	57,083
Depreciation and amortization	77,191	75,158	152,419	148,283
Gain on disposition of assets	(824)	(1,676)	(3,012)	(4,364)
Total operating expenses	381,024	364,346	754,574	716,877
Operating income	184,227	176,791	308,827	295,592
Other (income) expense
Interest income	(572)	(477)	(1,039)	(938)
Interest expense	44,337	43,649	88,824	85,093
Equity in (earnings) loss of investee	(4)	(449)	555	(627)
Total other (income) expense	43,761	42,723	88,340	83,528
Income before income tax expense	140,466	134,068	220,487	212,064
Income tax expense	2,872	3,180	4,394	4,978
Net income	137,594	130,888	216,093	207,086
Net income attributable to non-controlling interest	228	268	503	425
Net income attributable to controlling interest	137,366	130,620	215,590	206,661
Cash dividends declared and paid on preferred stock	91	91	182	182
Net income applicable to common stock	$ 137,275	$ 130,529	$ 215,408	$ 206,479
Earnings per share:
Basic earnings per share (in dollars per share)	$ 1.34	$ 1.28	$ 2.11	$ 2.03
Diluted earnings per share (in dollars per share)	1.34	1.28	2.10	2.02
Cash dividends declared per share of common stock (in dollars per share)	$ 1.30	$ 1.25	$ 2.60	$ 2.50
Weighted average common shares used in computing earnings per share:
Weighted average common shares outstanding basic (in shares)	102,248,621	101,917,200	102,181,890	101,855,104
Weighted average common shares outstanding diluted (in shares)	102,594,217	102,104,429	102,522,569	102,047,875
Statements of Comprehensive Income
Net income	$ 137,594	$ 130,888	$ 216,093	$ 207,086
Other comprehensive loss
Foreign currency translation adjustments	(431)	403	(823)	401
Comprehensive income	137,163	131,291	215,270	207,487
Net income attributable to non-controlling interest	228	268	503	425
Comprehensive income attributable to controlling interest	$ 136,935	$ 131,023	$ 214,767	$ 207,062