Property and Equipment, Net (Property and Equipment, Net (Including Assets Held Under Capital Leases)) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 6,969,794	$ 6,959,501
Less: accumulated depreciation	(4,260,113)	(4,247,782)
Property and equipment, net	2,709,681	2,711,719
Towers and Related Assets [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	5,833,745	5,850,608
Construction-In-Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	124,306	105,627
Furniture, Equipment and Vehicles [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	78,260	76,031
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 933,483	$ 927,235