Quarterly Financial Data (Schedule of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Financial Data [Abstract]
Revenues	$ 693,700	$ 667,595	$ 660,477	$ 657,862	$ 675,024	$ 682,544	$ 678,500	$ 675,516	$ 2,679,634	$ 2,711,584	$ 2,633,454
Operating income	382,339	375,596	354,470	323,358	209,687	248,604	241,227	224,141	1,435,763	923,659	925,408
Depreciation, accretion, and amortization	(65,073)	(63,515)	(64,179)	(76,750)	(171,400)	(180,674)	(181,820)	(182,415)	(269,517)	(716,309)	(707,576)
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
Net income per common share - basic	$ 1.61	$ 2.41	$ 1.52	$ 1.43	$ 1.01	$ 0.81	$ 1.88	$ 0.94	$ 6.96	$ 4.64	$ 4.27
Net income per common share - diluted	$ 1.61	$ 2.40	$ 1.51	$ 1.42	$ 1.01	$ 0.80	$ 1.87	$ 0.93	$ 6.94	$ 4.61	$ 4.22