Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net (loss) income	$ (127,933)	$ 25,989
Unrealized loss on interest rate swaps	(103,240)	(15,312)
Foreign currency translation adjustments	(174,841)	(4,544)
Comprehensive (loss) income	(406,014)	6,133
Comprehensive loss attributable to noncontrolling interests	2,058
Comprehensive (loss) income attributable to SBA Communications Corporation	$ (403,956)	$ 6,133