Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Rental and other property revenues	$ 520,783	$ 452,575	$ 1,491,901	$ 1,314,507
Expenses:
Operating expenses, excluding real estate taxes and insurance	117,390	106,412	328,514	304,124
Real estate taxes and insurance	74,033	66,426	214,006	199,943
Depreciation and amortization	136,879	134,611	404,761	397,938
Total property operating expenses	328,302	307,449	947,281	902,005
Property management expenses	16,262	13,831	48,429	40,522
General and administrative expenses	12,188	12,670	44,091	38,763
Interest expense	38,637	39,234	116,663	117,773
Loss (gain) on sale of depreciable real estate assets	1	313	(131,963)	(134,515)
Gain on sale of non-depreciable real estate assets	(431)	(170)	(809)	(202)
Other non-operating expense (income)	1,718	(10,344)	19,248	(14,557)
Income before income tax benefit (expense)	124,106	89,592	448,961	364,718
Income tax benefit (expense)	1,256	(2,803)	5,750	(5,847)
Income from continuing operations before real estate joint venture activity	125,362	86,789	454,711	358,871
Income from real estate joint venture	341	258	1,129	915
Net income	125,703	87,047	455,840	359,786
Net income (loss) attributable to noncontrolling interests	3,392	2,568	12,025	11,636
Net income available for shareholders	122,311	84,479	443,815	348,150
Dividends to MAA Series I preferred shareholders	922	922	2,766	2,766
Net income available for MAA common shareholders	$ 121,389	$ 83,557	$ 441,049	$ 345,384
Earnings per common share - basic:
Net income available for MAA common shareholders	$ 1.05	$ 0.73	$ 3.82	$ 3.01
Earnings per common share - diluted:
Net income available for MAA common shareholders	$ 1.05	$ 0.73	$ 3.82	$ 3.01
Limited Partnership [Member]
Revenues:
Rental and other property revenues	$ 520,783	$ 452,575	$ 1,491,901	$ 1,314,507
Expenses:
Operating expenses, excluding real estate taxes and insurance	117,390	106,412	328,514	304,124
Real estate taxes and insurance	74,033	66,426	214,006	199,943
Depreciation and amortization	136,879	134,611	404,761	397,938
Total property operating expenses	328,302	307,449	947,281	902,005
Property management expenses	16,262	13,831	48,429	40,522
General and administrative expenses	12,188	12,670	44,091	38,763
Interest expense	38,637	39,234	116,663	117,773
Loss (gain) on sale of depreciable real estate assets	1	313	(131,963)	(134,515)
Gain on sale of non-depreciable real estate assets	(431)	(170)	(809)	(202)
Other non-operating expense (income)	1,718	(10,344)	19,248	(14,557)
Income before income tax benefit (expense)	124,106	89,592	448,961	364,718
Income tax benefit (expense)	1,256	(2,803)	5,750	(5,847)
Income from continuing operations before real estate joint venture activity	125,362	86,789	454,711	358,871
Income from real estate joint venture	341	258	1,129	915
Net income	125,703	87,047	455,840	359,786
Net income (loss) attributable to noncontrolling interests	0	0	(293)	0
Net income available for shareholders	125,703	87,047	456,133	359,786
Dividends to MAA Series I preferred shareholders	922	922	2,766	2,766
Net income available for MAA common shareholders	$ 124,781	$ 86,125	$ 453,367	$ 357,020
Earnings per common share - basic:
Net income available for MAA common shareholders	$ 1.05	$ 0.73	$ 3.82	$ 3.01
Net income available for MAALP common unitholders	1.05	0.73	3.82	3.01
Earnings per common share - diluted:
Net income available for MAA common shareholders	1.05	0.73	3.82	3.01
Net income available for MAALP common unitholders	$ 1.05	$ 0.73	$ 3.82	$ 3.01