Segment Information - Revenues and NOI for Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Information
Total operating revenues	$ 529,033	$ 476,078
Net Operating Income	346,230	306,658
Depreciation and amortization	(138,501)	(133,738)
Property management expenses	(17,928)	(16,537)
General and administrative expenses	(15,923)	(16,323)
Interest expense	(37,281)	(39,121)
Gain (loss) on sale of depreciable real estate assets	15	(1)
Gain on sale of non-depreciable real estate assets	54	23
Other non-operating (expense) income	3,467	10,795
Income tax (expense) benefit	(944)	1,442
Gain (loss) from real estate joint ventures	385	379
Net loss attributable to noncontrolling interests	(3,664)	(2,775)
Distributions to MAALP Series I preferred unitholders	(922)	(922)
Net income available for MAA common shareholders	134,988	109,880
Same Store [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	497,250	447,599
Other operating income expense net	2,760	2,724
Total operating revenues	500,010	450,323
Net Operating Income	328,940	292,436
Non-Same Store and Other [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	28,843	25,516
Other operating income expense net	180	239
Total operating revenues	29,023	25,755
Net Operating Income	$ 17,290	$ 14,222