MAA Equity - Summary of Changes in Total Equity and its Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 6,125,434
Ending Balance	6,133,470
Mid America Apartment Communities Inc. Shareholders Equity [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	6,125,434	$ 6,279,955
Net Income Including Portion Attributable to Noncontrolling Interest	186,406	147,610
Other comprehensive income - derivative instruments	429	517
Issuance and registration of common shares	157	93
Shares repurchased and retired	(1,302)	(842)
Exercise of stock options	38
Shares issued in exchange for common units	0
Redeemable stock fair market value adjustment	(1,895)	402
Amortization of unearned compensation	5,861	6,525
Dividends on preferred stock	(922)	(922)
Dividends on common stock	(177,157)	(171,620)
Distributions on noncontrolling interests units	(4,637)	(4,604)
Contribution from noncontrolling interest	1,058	276
Ending Balance	6,133,470	6,257,390
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	9	9
Ending Balance	9	9
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	1,166	1,168
Issuance and registration of common shares		0
Ending Balance	1,166	1,168
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	7,417,453	7,399,921
Issuance and registration of common shares	157	93
Shares repurchased and retired	(1,302)	(842)
Exercise of stock options	38
Shares issued in exchange for common units	759	594
Adjustment for noncontrolling interests in Operating Partnership	(53)	(102)
Amortization of unearned compensation	5,861	6,525
Ending Balance	7,422,913	7,406,189
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Accumulated Distributions in Excess of Net Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,469,557)	(1,298,263)
Net income attributable to MAA	181,673	143,749
Redeemable stock fair market value adjustment	(1,895)	402
Dividends on preferred stock	(922)	(922)
Dividends on common stock	(177,157)	(171,620)
Ending Balance	(1,467,858)	(1,326,654)
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Accumulated Other Comprehensive Loss [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(6,940)	(8,764)
Other comprehensive income - derivative instruments	418	501
Ending Balance	(6,522)	(8,263)
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Noncontrolling Interests - Operating Partnership [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	155,409	163,128
Net Income Attributable to Noncontrolling Interest	4,733	3,861
Other comprehensive income - derivative instruments	11	16
Shares issued in exchange for common units	(759)	(594)
Adjustment for noncontrolling interests in Operating Partnership	53	102
Distributions on noncontrolling interests units	(4,637)	(4,604)
Ending Balance	154,810	161,909
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Noncontrolling Interests - Consolidated Real Estate Entities [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	27,894	22,756
Contribution from noncontrolling interest	1,058	276
Ending Balance	$ 28,952	$ 23,032