Segment Data (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 675,024	$ 682,544	$ 678,500	$ 675,516	$ 686,094	$ 675,584	$ 652,006	$ 619,770	$ 2,711,584	$ 2,633,454	$ 2,308,834
Cost of revenues									612,622	668,650	545,484
Operating profit									2,098,962	1,964,804	1,763,350
Selling, general, and administrative expenses									267,936	261,853	220,029
Acquisition and new business initiatives related adjustments and expenses									21,671	26,807	27,621
Asset impairment and decommission costs									169,387	43,160	33,044
Depreciation, amortization and accretion	171,400	180,674	181,820	182,415	183,036	173,825	176,392	174,323	716,309	707,576	700,161
Operating income	209,687	$ 248,604	$ 241,227	$ 224,141	234,664	$ 242,987	$ 230,978	$ 216,779	923,659	925,408	782,495
Other expense, net (principally interest expense and other income)									(375,156)	(399,565)	(529,931)
Income before income taxes									548,503	525,843	252,564
Cash capital expenditures									368,613	1,394,395	1,393,498
Assets	10,178,441				10,585,041				10,178,441	10,585,041
Domestic Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues									1,846,554	1,777,593	1,681,372
Cost of revenues									268,572	264,149	258,612
Operating profit									1,577,982	1,513,444	1,422,760
Selling, general, and administrative expenses									121,782	102,619	115,458
Acquisition and new business initiatives related adjustments and expenses									10,725	13,280	14,452
Asset impairment and decommission costs									138,699	33,880	20,135
Depreciation, amortization and accretion									457,169	489,072	514,234
Operating income									849,607	874,593	758,481
Cash capital expenditures									244,366	235,787	1,249,075
Assets	5,876,648				6,308,204				5,876,648	6,308,204
International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues									670,381	558,982	422,715
Cost of revenues									204,115	181,536	127,779
Operating profit									466,266	377,446	294,936
Selling, general, and administrative expenses									66,619	62,911	37,768
Acquisition and new business initiatives related adjustments and expenses									10,946	13,527	13,169
Asset impairment and decommission costs									28,089	9,280	12,763
Depreciation, amortization and accretion									248,758	209,563	177,059
Operating income									111,854	82,165	54,177
Cash capital expenditures									118,972	1,148,941	135,591
Assets	3,871,164				3,808,699				3,871,164	3,808,699
Site Development [Member]
Segment Reporting Information [Line Items]
Revenues									194,649	296,879	204,747
Cost of revenues									139,935	222,965	159,093
Operating profit									54,714	73,914	45,654
Selling, general, and administrative expenses									21,316	22,911	20,636
Asset impairment and decommission costs									372
Depreciation, amortization and accretion									3,704	2,521	2,295
Operating income									29,322	48,482	22,723
Cash capital expenditures									2,573	4,057	2,563
Assets	66,001				158,137				66,001	158,137
Other [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses									58,219	73,412	46,167
Asset impairment and decommission costs									2,227		146
Depreciation, amortization and accretion									6,678	6,420	6,573
Operating income									(67,124)	(79,832)	(52,886)
Other expense, net (principally interest expense and other income)									(375,156)	(399,565)	(529,931)
Cash capital expenditures									2,702	5,610	6,269
Assets	364,628				310,001				364,628	310,001
Brazil [Member]
Segment Reporting Information [Line Items]
Assets	$ 2,100,000								2,100,000
Brazil [Member] | International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues									$ 392,000	299,500	$ 233,500
Assets					$ 2,000,000					$ 2,000,000
Maximum [Member] | Revenue [Member] | Geographic Concentration Risk [Member] | Foreign Countries, Other than Brazil [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage									5.00%