Segment Data (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues		$ 675,584	$ 589,305	$ 1,947,360	$ 1,713,696
Cost of revenues		177,553	140,023	496,491	405,682
Operating profit		498,031	449,282	1,450,869	1,308,014
Selling, general, and administrative expenses	[1]	65,843	51,000	191,241	156,546
Acquisition and new business initiatives related adjustments and expenses		6,844	5,730	18,776	17,525
Asset impairment and decommission costs		8,532	9,860	25,565	18,560
Depreciation, amortization and accretion		173,825	170,916	524,541	530,266
Operating income		242,987	211,776	690,746	585,117
Other expense (principally interest expense and other expense)		(140,342)	(174,812)	(293,728)	(380,903)
Income before income taxes		102,645	36,964	397,018	204,214
Cash capital expenditures		123,829	92,935	570,770	1,279,926
Assets		9,949,014		9,949,014		$ 9,801,699
Domestic Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		449,595	426,758	1,324,666	1,249,291
Cost of revenues		66,423	65,260	197,995	194,455
Operating profit		383,172	361,498	1,126,671	1,054,836
Selling, general, and administrative expenses		26,189	27,983	75,787	85,240
Acquisition and new business initiatives related adjustments and expenses		4,318	2,911	10,705	10,839
Asset impairment and decommission costs		7,835	6,113	20,407	12,674
Depreciation, amortization and accretion		122,149	123,705	367,853	390,730
Operating income		222,681	200,786	651,919	555,353
Cash capital expenditures		48,522	39,062	182,494	1,186,791
Assets		6,400,854		6,400,854		6,628,156
International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		137,707	108,734	402,301	315,523
Cost of revenues		45,590	33,406	132,687	95,055
Operating profit		92,117	75,328	269,614	220,468
Selling, general, and administrative expenses		14,952	9,272	45,519	26,553
Acquisition and new business initiatives related adjustments and expenses		2,526	2,819	8,071	6,686
Asset impairment and decommission costs		697	3,747	5,158	5,740
Depreciation, amortization and accretion		49,530	45,035	150,008	132,900
Operating income		24,412	14,455	60,858	48,589
Cash capital expenditures		73,007	51,897	380,072	87,572
Assets		3,055,310		3,055,310		2,870,503
Site Development [Member]
Segment Reporting Information [Line Items]
Revenues		88,282	53,813	220,393	148,882
Cost of revenues		65,540	41,357	165,809	116,172
Operating profit		22,742	12,456	54,584	32,710
Selling, general, and administrative expenses		5,711	4,791	16,445	14,574
Depreciation, amortization and accretion		624	565	1,831	1,727
Operating income		16,407	7,100	36,308	16,409
Cash capital expenditures		1,367	221	4,061	1,812
Assets		125,512		125,512		87,410
Other [Member]
Segment Reporting Information [Line Items]
Selling, general, and administrative expenses		18,991	8,954	53,490	30,179
Asset impairment and decommission costs					146
Depreciation, amortization and accretion		1,522	1,611	4,849	4,909
Operating income		(20,513)	(10,565)	(58,339)	(35,234)
Other expense (principally interest expense and other expense)		(140,342)	(174,812)	(293,728)	(380,903)
Cash capital expenditures		933	1,755	4,143	3,751
Assets		367,338		367,338		$ 215,630
Brazil [Member]
Segment Reporting Information [Line Items]
Assets		900,000		900,000
Brazil [Member] | International Site Leasing [Member]
Segment Reporting Information [Line Items]
Revenues		$ 70,700	$ 60,700	$ 209,800	$ 174,500

[1] Includes non-cash compensation of $24,945 and $16,589 for the three months ended September 30, 2022 and 2021, respectively, and $72,309 and $57,249 for the nine months ended September 30, 2022 and 2021, respectively.