Earnings Per Common Share of MAA - Schedule of Computation of Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share Disclosure [Line Items]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 149,657	$ 216,560	$ 289,231	$ 330,137
Income from continuing operations attributable to noncontrolling interests		(3,969)	(5,858)	(7,633)	(8,633)
Income from continuing operations allocated to unvested restricted shares		(58)	(149)	(118)	(228)
Dividends to MAA Series I preferred shareholders		(922)	(922)	(1,844)	(1,844)
Income from continuing operations available for common shareholders, adjusted		$ 144,708	$ 209,631	$ 279,636	$ 319,432
Weighted average common shares - basic		116,621	115,353	116,401	115,306
Earnings per common share - basic		$ 1.24	$ 1.82	$ 2.4	$ 2.77
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 149,657	$ 216,560	$ 289,231	$ 330,137
Income from continuing operations attributable to noncontrolling interests	[1]	(3,969)	(5,858)	(7,633)	(8,633)
Net income available for MAA common shareholders, adjusted		$ 144,766	$ 209,780	$ 279,754	$ 319,660
Effect of dilutive securities		104	203	157	336
Weighted average common shares - diluted		116,725	115,556	116,558	115,642
Earnings per common share - diluted		$ 1.24	$ 1.82	$ 2.4	$ 2.76
Limited Partnership Units [Member]
Earnings Per Share Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		3,200	3,200	3,200	3,200

[1] For the three and six months ended June 30, 2023 and 2022, 3.2 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive.