Acquisitions (Narrative) (Details) $ in Millions	1 Months Ended	9 Months Ended
	Nov. 07, 2023 USD ($) item	Sep. 30, 2023 USD ($) item	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Performance targets, maximum potential obligation		$ 18.4		$ 10.1
Airtel Tanzania [Member]
Business Acquisition [Line Items]
Consideration transferred			$ 176.1
Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of towers acquired | item		68
Property and equipment		$ 11.0
Intangible assets		49.0
Operating leases right-of-use assets, net		13.4
Acquired and other right-of-use assets, net		2.8
Acquisition related holdbacks		2.4
Long-term lease liabilities assumed		11.3
Other net assets assumed		$ 0.9
Subsequent Event [Member] | Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of communication sites acquired | item	215
Cash paid for acquisition	$ 74.0