Segment Data (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenues		$ 667,595	$ 682,544	$ 1,985,934	$ 2,036,560
Cost of revenues		150,339	149,770	429,598	468,325
Operating profit		517,256	532,774	1,556,336	1,568,235
Selling, general, and administrative expenses	[1]	60,087	64,821	191,161	200,412
Acquisition and new business initiatives related adjustments and expenses		5,388	5,612	19,379	16,622
Asset impairment and decommission costs		12,670	33,063	87,928	92,320
Depreciation, amortization and accretion		63,515	180,674	204,444	544,909
Operating income		375,596	248,604	1,053,424	713,972
Other expense, net (principally interest expense and other income)		(77,389)	(155,381)	(436,632)	(303,893)
Income before income taxes		298,207	93,223	616,792	410,079
Cash capital expenditures		272,297	115,430	441,163	268,781
Assets		10,201,663		10,201,663		$ 10,178,441
Domestic Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		464,860	468,371	1,389,563	1,379,959
Cost of revenues		68,908	66,768	200,368	200,952
Operating profit		395,952	401,603	1,189,195	1,179,007
Selling, general, and administrative expenses		32,114	30,759	100,070	90,946
Acquisition and new business initiatives related adjustments and expenses		3,496	2,369	11,883	8,174
Asset impairment and decommission costs		1,337	25,560	45,075	75,460
Depreciation, amortization and accretion		34,636	114,849	108,851	351,689
Operating income		324,369	228,066	923,316	652,738
Cash capital expenditures		234,962	81,886	324,586	177,464
Assets		6,173,557		6,173,557		5,876,648
International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		160,837	169,069	490,867	500,892
Cost of revenues		49,040	51,509	146,525	152,459
Operating profit		111,797	117,560	344,342	348,433
Selling, general, and administrative expenses		15,258	15,925	46,741	51,068
Acquisition and new business initiatives related adjustments and expenses		1,892	3,243	7,496	8,448
Asset impairment and decommission costs		10,989	7,503	42,086	14,633
Depreciation, amortization and accretion		26,098	63,218	87,384	185,522
Operating income		57,560	27,671	160,635	88,762
Cash capital expenditures		36,317	31,583	113,606	86,695
Assets		3,641,169		3,641,169		3,871,164
Site Development [Member]
Segment Reporting Information [Line Items]
Revenues		41,898	45,104	105,504	155,709
Cost of revenues		32,391	31,493	82,705	114,914
Operating profit		9,507	13,611	22,799	40,795
Selling, general, and administrative expenses		2,849	4,993	10,219	15,541
Depreciation, amortization and accretion		895	915	2,767	2,767
Operating income		5,763	7,703	9,813	22,487
Cash capital expenditures		428	1,280	610	2,350
Assets		55,076		55,076		66,001
Other [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses		9,866	13,144	34,131	42,857
Asset impairment and decommission costs		344		767	2,227
Depreciation, amortization and accretion		1,886	1,692	5,442	4,931
Operating income		(12,096)	(14,836)	(40,340)	(50,015)
Other expense, net (principally interest expense and other income)		(77,389)	(155,381)	(436,632)	(303,893)
Cash capital expenditures		590	681	2,361	2,272
Assets		331,861		331,861		$ 364,628
Brazil [Member] | International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		$ 89,300	$ 100,000	$ 279,900	$ 293,600
Maximum [Member] | Revenue [Member] | Geographic Concentration Risk [Member] | Foreign Countries, Other than Brazil [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage				5.00%	5.00%

[1] Includes non-cash compensation of $15,732 and $20,615 for the three months ended September 30, 2024 and 2023, respectively, and $54,376 and $63,709 for the nine months ended September 30, 2024 and 2023, respectively.