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
		Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share Disclosure [Line Items]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 139,574	$ 113,577
Income from continuing operations attributable to noncontrolling interests		(3,664)	(2,775)
Income from continuing operations allocated to unvested restricted shares		(60)	(79)
Dividends to MAA Series I preferred shareholders		(922)	(922)
Income from continuing operations available for common shareholders, adjusted		$ 134,928	$ 109,801
Weighted average common shares - basic		116,182	115,259
Earnings per common share - basic		$ 1.16	$ 0.95
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 139,574	$ 113,577
Income from continuing operations attributable to noncontrolling interests	[1]	(3,664)	(2,775)
Net income available for MAA common shareholders, adjusted		$ 134,988	$ 109,880
Effect of dilutive securities		220	459
Weighted average common shares - diluted		116,402	115,718
Earnings per common share - diluted		$ 1.16	$ 0.95
Limited Partnership Units [Member]
Earnings Per Share Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		3,200	3,200

[1] For the three months ended March 31, 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.