Earnings Per OP Unit of MAALP - Schedule of Diluted Earnings per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share Disclosure [Line Items]
Net income	$ 113,577	$ 48,864
Net loss attributable to noncontrolling interests	2,775	1,671
Dividends, Preferred Stock, Cash	(922)	(922)
Income from continuing operations available for common shareholders, adjusted	$ 109,801	$ 46,217
Earnings per share - basic	$ 0.95	$ 0.40
Net income available for MAA common shareholders, adjusted	$ 109,880	$ 46,271
Effect of dilutive securities	459,000	312,000
Weighted average common shares - diluted	115,718,000	114,575,000
Earnings per common share - diluted	$ 0.95	$ 0.40
Limited Partnership [Member]
Earnings Per Share Disclosure [Line Items]
Net income	$ 113,577	$ 48,864
Net loss attributable to noncontrolling interests	(293)	0
Income from continuing operations allocated to unvested restricted shares	(79)	(54)
Dividends, Preferred Stock, Cash	(922)	(922)
Income from continuing operations available for common shareholders, adjusted	$ 112,869	$ 47,888
Weighted average common units - basic	118,462	118,318
Earnings per share - basic	$ 0.95	$ 0.40
Net income available for MAA common shareholders, adjusted	$ 112,948	$ 47,942
Effect of dilutive securities	459	312
Weighted average common shares - diluted	118,921	118,630
Earnings per common share - diluted	$ 0.95	$ 0.40