Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 152,669	$ 23,118	$ 140,922	$ (104,816)
Adjustments related to interest rate swaps	5,565	(12,684)	48,352	(115,923)
Foreign currency translation adjustments	63,869	(8,166)	20,235	(184,193)
Comprehensive income (loss)	222,103	2,268	209,509	(404,932)
Comprehensive (income) loss attributable to noncontrolling interests		(485)		1,573
Comprehensive income (loss) attributable to SBA Communications Corporation	$ 222,103	$ 1,783	$ 209,509	$ (403,359)