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, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net income attributable to SBA Communications Corporation	$ 109,528	$ 87,419	$ 203,648	$ 101,217	$ 103,281	$ 100,009	$ 69,516	$ 188,623	$ 501,812	$ 461,429	$ 237,624
Basic weighted-average shares outstanding									108,204	107,957	109,328
Dilutive impact of stock options, RSUs, and PSUs									703	1,429	1,849
Diluted weighted-average shares outstanding									108,907	109,386	111,177
Net income per common share attributable to SBA Communications Corporation:
Basic									$ 4.64	$ 4.27	$ 2.17
Diluted									$ 4.61	$ 4.22	$ 2.14