Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares	Sep. 30, 2024 $ / shares	Jun. 30, 2024 $ / shares	Mar. 31, 2024 $ / shares	Dec. 31, 2023 USD ($) $ / shares	Sep. 30, 2023 $ / shares	Jun. 30, 2023 $ / shares	Mar. 31, 2023 $ / shares	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) site $ / shares
Summary of Significant Accounting Policies [Line Items]
Gain (loss) on sale of investments									$ 0	$ 0
Interest cost capitalized									$ 800,000	900,000	$ 600,000
Useful life	30 years								30 years
Impairment charge recognized, related to long-lived assets									$ 107,900,000	169,400,000	43,200,000
Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag									impairment charges
Asset retirement obligation	$ 140,900,000				$ 119,300,000				$ 140,900,000	119,300,000
Accounts receivable, net	145,695,000				182,746,000				145,695,000	182,746,000
Unamortized deferred lease costs	2,100,000				3,200,000				2,100,000	3,200,000	3,300,000
Amortization expense	1,900,000				2,300,000				1,900,000	2,300,000	1,900,000
Deferred lease costs	8,800,000				8,700,000				8,800,000	8,700,000
Gain (loss) on remeasurement of U.S. dollar denominated intercompany loan									(156,800,000)	52,400,000	$ 12,900,000
Intercompany loans funded	9,300,000								9,300,000
Repayment of debt									177,100,000
Intercompany foreign currency outstanding balance	$ 1,100,000				$ 1,300,000				$ 1,100,000	$ 1,300,000
Estimated useful lives				15 years
Increase in diluted shares | $ / shares	$ 1.61	$ 2.40	$ 1.51	$ 1.42	$ 1.01	$ 0.80	$ 1.87	$ 0.93	$ 6.94	$ 4.61	$ 4.22
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Acquired intangible assets, useful life									1 year
Operating lease term	5 years								5 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Business acquisitions period after closing date to determine additional adjustments									1 year
Acquired intangible assets, useful life									3 years
Operating lease term	15 years								15 years
Site Development Revenue [Member]
Summary of Significant Accounting Policies [Line Items]
Accounts receivable, net	$ 26,400,000				$ 32,300,000				$ 26,400,000	$ 32,300,000
Segment Concentration Risk [Member] | Domestic Site Leasing [Member] | Revenue [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage									94.00%
Segment Concentration Risk [Member] | Site Development Revenue [Member] | Revenue [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage									6.00%
Airtel Tanzania [Member]
Summary of Significant Accounting Policies [Line Items]
Number of utility transmission structures acquired | site											1,445
Consideration transferred											$ 176,100,000
ASC 250 [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives				30 years
Reduction in depreciation and amortization expense									$ 411,500,000
Reduction in depreciation and amortization expense after tax									$ 372,500,000
Increase in diluted shares | $ / shares									$ 3.45