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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share Disclosure [Line Items]
Net income		$ 110,875	$ 104,662	$ 297,281	$ 252,272
Net income attributable to noncontrolling interests		(2,748)	(2,709)	(7,481)	(6,570)
Unvested restricted shares (allocation of earnings)		(59)	(47)	(156)	(111)
Dividends to MAA Series I preferred shareholders		(922)	(922)	(1,844)	(1,844)
Net income available for MAA common shareholders, adjusted		$ 107,146	$ 100,984	$ 287,800	$ 243,747
Weighted average common shares - basic		116,976	116,783	116,908	116,727
Earnings per common share - basic		$ 0.92	$ 0.86	$ 2.46	$ 2.09
Net income attributable to noncontrolling interests	[1]	$ (2,748)	$ (2,709)	$ (7,481)	$ (6,570)
Unvested restricted shares (allocation of earnings)		0	(47)	0	(111)
Dividends to MAA Series I preferred shareholders		(922)	(922)	(1,844)	(1,844)
Net income available for MAA common shareholders, adjusted		$ 107,205	$ 100,984	$ 287,956	$ 243,747
Weighted average common shares - diluted		117,163	116,783	117,149	116,727
Effect of dilutive securities		187	0	241	0
Earnings per common share - diluted		$ 0.92	$ 0.86	$ 2.46	$ 2.09
Limited Partnership Units [Member]
Earnings Per Share Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		3,000	3,100	3,000	3,100

[1] For the three and six months ended June 30, 2025 and 2024, 3.0 million OP Units and 3.1 million OP Units, respectively, and their related income are not included in the diluted earnings per share calculations as they are not dilutive.