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								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net income attributable to SBA Communications Corporation	$ 173,629	$ 258,534	$ 162,830	$ 154,543	$ 109,528	$ 87,419	$ 203,648	$ 101,217	$ 749,536	$ 501,812	$ 461,429
Basic weighted-average shares outstanding									107,644	108,204	107,957
Dilutive impact of stock options, RSUs, and PSUs									436	703	1,429
Diluted weighted-average shares outstanding									108,080	108,907	109,386
Net income per common share attributable to SBA Communications Corporation:
Basic									$ 6.96	$ 4.64	$ 4.27
Diluted									$ 6.94	$ 4.61	$ 4.22