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		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income attributable to SBA Communications Corporation	$ 87,419	$ 100,009	$ 392,284	$ 358,150
Basic weighted-average shares outstanding	108,373	107,916	108,288	107,950
Dilutive impact of stock options, RSUs, and PSUs	518	1,442	729	1,466
Diluted weighted-average shares outstanding	108,891	109,358	109,017	109,416
Net income per common share attributable to SBA Communications Corporation:
Basic	$ 0.81	$ 0.93	$ 3.62	$ 3.32
Diluted	$ 0.80	$ 0.91	$ 3.60	$ 3.27