Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Limited Partner [Member]
Consolidated net income	$ 65,958	$ 50,820
Unrealized (loss) gain from the effective portion of derivative instruments	(2,456)	832
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(745)	(193)
Comprehensive income attributable to Mid-America Apartments, L.P.	62,757	51,459
Parent Company [Member]
Consolidated net income	65,958	50,820
Unrealized (loss) gain from the effective portion of derivative instruments	(2,456)	832
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(745)	(193)
Total comprehensive income	62,757	51,459
Less: comprehensive income attributable to noncontrolling interests	(2,185)	(1,830)
Comprehensive income attributable to MAA	$ 60,572	$ 49,629