Segment Data (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenues		$ 657,862	$ 675,516
Cost of revenues		137,991	164,304
Operating profit		519,871	511,212
Selling, general, and administrative expenses	[1]	68,698	72,209
Acquisition and new business initiatives related adjustments and expenses		7,417	6,057
Asset impairment and decommission costs		43,648	26,390
Depreciation, amortization and accretion		76,750	182,415
Operating income		323,358	224,141
Other expense, net (principally interest expense and other income)		(151,888)	(80,079)
Income before income taxes		171,470	144,062
Cash capital expenditures		77,276	69,320
Assets		9,995,266		$ 10,178,441
Domestic Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		461,499	454,833
Cost of revenues		65,970	69,750
Operating profit		395,529	385,083
Selling, general, and administrative expenses		34,348	31,743
Acquisition and new business initiatives related adjustments and expenses		5,298	3,232
Asset impairment and decommission costs		29,913	19,435
Depreciation, amortization and accretion		40,345	119,487
Operating income		285,625	211,186
Cash capital expenditures		41,021	44,636
Assets		5,832,986		5,876,648
International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		166,777	162,435
Cost of revenues		48,843	50,369
Operating profit		117,934	112,066
Selling, general, and administrative expenses		15,708	16,730
Acquisition and new business initiatives related adjustments and expenses		2,119	2,825
Asset impairment and decommission costs		13,735	4,886
Depreciation, amortization and accretion		33,829	60,412
Operating income		52,543	27,213
Cash capital expenditures		35,602	23,033
Assets		3,743,958		3,871,164
Site Development [Member]
Segment Reporting Information [Line Items]
Revenues		29,586	58,248
Cost of revenues		23,178	44,185
Operating profit		6,408	14,063
Selling, general, and administrative expenses		4,426	6,077
Depreciation, amortization and accretion		834	916
Operating income		1,148	7,070
Cash capital expenditures		59	395
Assets		42,665		66,001
Other [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses		14,216	17,659
Asset impairment and decommission costs			2,069
Depreciation, amortization and accretion		1,742	1,600
Operating income		(15,958)	(21,328)
Other expense, net (principally interest expense and other income)		(151,888)	(80,079)
Cash capital expenditures		594	1,256
Assets		375,657		$ 364,628
Brazil [Member] | International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		$ 97,500	$ 93,800
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 $20,773 and $25,529 for the three months ended March 31, 2024 and 2023, respectively.