Acquisitions (Narrative) (Details) $ in Millions	1 Months Ended	6 Months Ended
	Aug. 03, 2023 USD ($) item	Jun. 30, 2023 USD ($) item	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Performance targets, maximum potential obligation		$ 8.2		$ 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		23
Property and equipment		$ 2.6
Intangible assets		16.7
Operating leases right-of-use assets, net		3.4
Acquired and other right-of-use assets, net		1.7
Acquisition related holdbacks		0.1
Long-term lease liabilities assumed		2.2
Other net assets assumed		$ 0.3
Subsequent Event [Member] | Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of communication sites acquired | item	134
Cash paid for acquisition	$ 72.9