Concentration of Credit Risk (Summary of Significant Customers and Percentage of Total Revenue for Specified Time Periods Derived from Such Customers) (Details) - Revenue [Member]	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
T-Mobile [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	30.50%	32.50%	36.40%
AT&T Wireless [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	20.60%	19.50%	19.60%
Verizon Wireless [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	15.10%	14.60%	14.50%
Domestic Site Leasing [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	94.00%
Domestic Site Leasing [Member] | T-Mobile [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	38.10%	40.20%	40.60%
Domestic Site Leasing [Member] | AT&T Wireless [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	29.60%	28.60%	29.00%
Domestic Site Leasing [Member] | Verizon Wireless [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	20.10%	19.70%	20.10%
International Site Leasing [Member] | Telefonica [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	21.30%	22.50%	20.70%
International Site Leasing [Member] | Claro [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	19.20%	20.20%	19.00%
International Site Leasing [Member] | TIM [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	15.90%	15.70%	17.30%
Site Development Revenue [Member] | Segment Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	6.00%
Site Development Revenue [Member] | T-Mobile [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	69.90%	71.50%	80.10%
Site Development Revenue [Member] | Verizon Wireless [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage	20.10%	16.80%	7.80%