Earnings Per Share (Weighted-Average Shares of Common Stock Outstanding used in Calculation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Net income attributable to SBA Communications Corporation	$ 220,732	$ 154,543
Basic weighted-average shares outstanding	107,744	108,102
Dilutive impact of stock options, RSUs, and PSUs	396	514
Diluted weighted-average shares outstanding	108,140	108,616
Net income per common share attributable to SBA Communications Corporation:
Basic	$ 2.05	$ 1.43
Diluted	$ 2.04	$ 1.42