Segment Information - Revenues and NOI for Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating revenues	$ 549,295	$ 543,622
Total property operating expenses, excluding depreciation and amortization	201,353	197,802
Net Operating Income	347,942	345,820
Depreciation and amortization	(152,350)	(143,020)
Property management expenses	(20,578)	(19,995)
General and administrative expenses	(15,619)	(17,045)
Interest expense	(45,161)	(40,361)
Gain (loss) on sale of depreciable real estate assets	71,911	(2)
Other non-operating income	834	23,526
Income tax expense	(1,038)	(1,795)
Income from real estate joint venture	465	482
Net income attributable to noncontrolling interests	(4,733)	(3,861)
Dividends to MAA Series I preferred shareholders	(922)	(922)
Net income available for MAA common shareholders	180,751	142,827
Same Store [Member]
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	515,407	515,850
Other operating income expense net	3,418	2,683
Total operating revenues	518,825	518,533
Total property operating expenses, excluding depreciation and amortization	186,030	183,889
Real estate taxes	63,335	67,867
Personnel	41,584	39,472
Utilities	33,911	32,184
Building repair and maintenance	22,442	21,664
Office operations	9,569	8,441
Insurance	8,437	8,163
Marketing	6,752	6,098
Net Operating Income	332,795	334,644
Non-Same Store and Other [Member]
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	30,224	23,966
Other operating income expense net	246	1,123
Total operating revenues	30,470	25,089
Total property operating expenses, excluding depreciation and amortization	15,323	13,913
Net Operating Income	$ 15,147	$ 11,176