Acquisitions (Narrative) (Details) $ in Millions	1 Months Ended	3 Months Ended
	May 06, 2024 USD ($) item	Mar. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Performance targets, maximum potential obligation		$ 16.4	$ 17.9
Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of towers acquired | item		11
Property and equipment		$ 1.6
Intangible assets		9.6
Operating leases right-of-use assets, net		1.6
Acquisition related holdbacks		2.3
Long-term lease liabilities assumed		$ 0.2
Subsequent Event [Member] | Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of communication sites acquired | item	271
Cash paid for acquisition	$ 84.5