Property and Equipment, Net (Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 7,125,528	$ 7,072,176
Less: accumulated depreciation	(4,306,621)	(4,280,092)
Property and equipment, net	2,818,907	2,792,084
Towers and Related Assets [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	5,947,663	5,902,092
Construction-In-Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	77,677	72,202
Furniture, Equipment and Vehicles [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	89,323	84,629
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 1,010,865	$ 1,013,253