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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Limited Partner [Member]
Consolidated net income	$ 54,704	$ 118,958	$ 167,505	$ 212,529
Unrealized (loss) gain from the effective portion of derivative instruments	4,245	90	10,797	(1,252)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(548)	(33)	(1,296)	884
Comprehensive income attributable to Mid-America Apartments, L.P.	58,401	119,015	177,006	212,161
Parent Company [Member]
Consolidated net income	54,704	118,958	167,505	212,529
Unrealized (loss) gain from the effective portion of derivative instruments	4,245	90	10,797	(1,252)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(548)	(33)	(1,296)	884
Total comprehensive income	58,401	119,015	177,006	212,161
Less: comprehensive income attributable to noncontrolling interests	(2,040)	(4,251)	(6,223)	(7,586)
Comprehensive income attributable to MAA	$ 56,361	$ 114,764	$ 170,783	$ 204,575

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