Segment Information - Revenues and NOI for Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Information
Total operating revenues	$ 546,435	$ 535,146	$ 1,090,057	$ 1,064,179
Net Operating Income	340,639	340,813	686,459	687,043
Depreciation and amortization	(145,022)	(138,972)	(288,042)	(277,473)
Property management expenses	(17,201)	(16,091)	(37,196)	(34,019)
General and administrative expenses	(12,671)	(13,882)	(29,716)	(29,805)
Interest expense	(41,265)	(36,723)	(81,626)	(74,004)
(Loss) gain on sale of depreciable real estate assets	(23)	(1)	(25)	14
Gain on sale of non-depreciable real estate assets	0	0	0	54
Other non-operating (expense) income	(19,244)	16,992	4,282	20,459
Income tax expense	(1,020)	(2,861)	(2,815)	(3,805)
Income from real estate joint venture	469	382	951	767
Net income (loss) attributable to noncontrolling interests	(2,709)	(3,969)	(6,570)	(7,633)
Dividends to MAA Series I preferred shareholders	(922)	(922)	(1,844)	(1,844)
Net income available for MAA common shareholders	101,031	144,766	243,858	279,754
Same Store [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	518,235	514,364	1,035,180	1,023,964
Other operating income expense net	3,305	3,622	5,989	6,453
Total operating revenues	521,540	517,986	1,041,169	1,030,417
Net Operating Income	328,280	331,611	662,863	668,540
Non-Same Store and Other [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	24,555	17,037	47,427	33,529
Other operating income expense net	340	123	1,461	233
Total operating revenues	24,895	17,160	48,888	33,762
Net Operating Income	$ 12,359	$ 9,202	$ 23,596	$ 18,503