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MAA Equity | 9 Months Ended
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Sep. 30, 2025
M A A Equity [Abstract] |
MAA Equity | 4. MAA Equity Changes in MAA’s total equity and its components for the three months ended September 30, 2025 and 2024 were as follows (dollars in thousands):
|  | Mid-America Apartment Communities, Inc. Shareholders’ Equity |  |  |  |  |  |  |  |  |  |
|  | Preferred Stock |  |  | Common Stock |  |  | Additional Paid-In Capital |  |  | Accumulated Distributions in Excess of Net Income |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Operating Partnership |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Equity |
EQUITY BALANCE JUNE 30, 2025 |  | $ | 9 |  |  | $ | 1,168 |  |  | $ | 7,431,627 |  |  | $ | (1,535,340 | ) |  | $ | (6,110 | ) |  | $ | 147,439 |  |  | $ | 30,472 |  |  | $ | 6,069,265 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 99,538 |  |  |  | — |  |  |  | 2,506 |  |  |  | — |  |  |  | 102,044 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 418 |  |  |  | 12 |  |  |  | — |  |  |  | 430 |
Issuance and registration of common shares |  |  | — |  |  |  | — |  |  |  | 144 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 144 |
Shares repurchased and retired |  |  | — |  |  |  | — |  |  |  | (29 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (29 | )
Shares issued in exchange for common units |  |  | — |  |  |  | — |  |  |  | 391 |  |  |  | — |  |  |  | — |  |  |  | (391 | ) |  |  | — |  |  |  | — |
Redeemable stock fair market value adjustment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,189 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,189 |
Adjustment for noncontrolling interests in Operating Partnership |  |  | — |  |  |  | — |  |  |  | (56 | ) |  |  | — |  |  |  | — |  |  |  | 56 |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | — |  |  |  | 3,620 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3,620 |
Dividends on preferred stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (922 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (922 | )
Dividends on common stock ($1.5150 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (177,377 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (177,377 | )
Distributions on noncontrolling interests units ($1.5150 per unit) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (4,457 | ) |  |  | — |  |  |  | (4,457 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 172 |  |  |  | 172 |
EQUITY BALANCE SEPTEMBER 30, 2025 |  | $ | 9 |  |  | $ | 1,168 |  |  | $ | 7,435,697 |  |  | $ | (1,612,912 | ) |  | $ | (5,692 | ) |  | $ | 145,165 |  |  | $ | 30,644 |  |  | $ | 5,994,079 |
|  | Mid-America Apartment Communities, Inc. Shareholders’ Equity |  |  |  |  |  |  |  |  |  |
|  | Preferred Stock |  |  | Common Stock |  |  | Additional Paid-In Capital |  |  | Accumulated Distributions in Excess of Net Income |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Operating Partnership |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Equity |
EQUITY BALANCE JUNE 30, 2024 |  | $ | 9 |  |  | $ | 1,166 |  |  | $ | 7,409,258 |  |  | $ | (1,398,993 | ) |  | $ | (7,775 | ) |  | $ | 157,905 |  |  | $ | 24,662 |  |  | $ | 6,186,232 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 115,195 |  |  |  | — |  |  |  | 3,035 |  |  |  | — |  |  |  | 118,230 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 416 |  |  |  | 12 |  |  |  | — |  |  |  | 428 |
Issuance and registration of common shares |  |  | — |  |  |  | — |  |  |  | 8 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 8 |
Shares issued in exchange for common units |  |  | — |  |  |  | — |  |  |  | 926 |  |  |  | — |  |  |  | — |  |  |  | (926 | ) |  |  | — |  |  |  | — |
Redeemable stock fair market value adjustment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,282 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,282 | )
Adjustment for noncontrolling interests in Operating Partnership |  |  | — |  |  |  | — |  |  |  | (57 | ) |  |  | — |  |  |  | — |  |  |  | 57 |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | — |  |  |  | 3,539 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3,539 |
Dividends on preferred stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (922 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (922 | )
Dividends on common stock ($1.4700 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (171,814 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (171,814 | )
Distributions on noncontrolling interests units ($1.4700 per unit) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (4,521 | ) |  |  | — |  |  |  | (4,521 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,696 |  |  |  | 2,696 |
EQUITY BALANCE SEPTEMBER 30, 2024 |  | $ | 9 |  |  | $ | 1,166 |  |  | $ | 7,413,674 |  |  | $ | (1,458,816 | ) |  | $ | (7,359 | ) |  | $ | 155,562 |  |  | $ | 27,358 |  |  | $ | 6,131,594 |
Changes in MAA’s total equity and its components for the nine months ended September 30, 2025 and 2024 were as follows (dollars in thousands):
|  | Mid-America Apartment Communities, Inc. Shareholders’ Equity |  |  |  |  |  |  |  |  |  |
|  | Preferred Stock |  |  | Common Stock |  |  | Additional Paid-In Capital |  |  | Accumulated Distributions in Excess of Net Income |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Operating Partnership |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Equity |
EQUITY BALANCE DECEMBER 31, 2024 |  | $ | 9 |  |  | $ | 1,166 |  |  | $ | 7,417,453 |  |  | $ | (1,469,557 | ) |  | $ | (6,940 | ) |  | $ | 155,409 |  |  | $ | 27,894 |  |  | $ | 6,125,434 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 389,338 |  |  |  | — |  |  |  | 9,987 |  |  |  | — |  |  |  | 399,325 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,248 |  |  |  | 40 |  |  |  | — |  |  |  | 1,288 |
Issuance and registration of common shares |  |  | — |  |  |  | 1 |  |  |  | (806 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (805 | )
Shares repurchased and retired |  |  | — |  |  |  |  |  |  | (3,100 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,100 | )
Exercise of stock options |  |  | — |  |  |  | — |  |  |  | 38 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 38 |
Shares issued in exchange for common units |  |  | — |  |  |  | 1 |  |  |  | 6,758 |  |  |  | — |  |  |  | — |  |  |  | (6,759 | ) |  |  | — |  |  |  | — |
Shares issued in exchange for redeemable stock |  |  | — |  |  |  | — |  |  |  | 2,109 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,109 |
Redeemable stock fair market value adjustment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,018 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,018 |
Adjustment for noncontrolling interests in Operating Partnership |  |  | — |  |  |  | — |  |  |  | (51 | ) |  |  | — |  |  |  | — |  |  |  | 51 |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | — |  |  |  | 13,296 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 13,296 |
Dividends on preferred stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,766 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,766 | )
Dividends on common stock ($4.5450 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (531,945 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (531,945 | )
Distributions on noncontrolling interests units ($4.5450 per unit) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (13,563 | ) |  |  | — |  |  |  | (13,563 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,750 |  |  |  | 2,750 |
EQUITY BALANCE SEPTEMBER 30, 2025 |  | $ | 9 |  |  | $ | 1,168 |  |  | $ | 7,435,697 |  |  | $ | (1,612,912 | ) |  | $ | (5,692 | ) |  | $ | 145,165 |  |  | $ | 30,644 |  |  | $ | 5,994,079 |
|  | Mid-America Apartment Communities, Inc. Shareholders’ Equity |  |  |  |  |  |  |  |  |  |
|  | Preferred Stock |  |  | Common Stock |  |  | Additional Paid-In Capital |  |  | Accumulated Distributions in Excess of Net Income |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Operating Partnership |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Equity |
EQUITY BALANCE DECEMBER 31, 2023 |  | $ | 9 |  |  | $ | 1,168 |  |  | $ | 7,399,921 |  |  | $ | (1,298,263 | ) |  | $ | (8,764 | ) |  | $ | 163,128 |  |  | $ | 22,756 |  |  | $ | 6,279,955 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 360,897 |  |  |  | — |  |  |  | 9,605 |  |  |  | — |  |  |  | 370,502 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,405 |  |  |  | 43 |  |  |  | — |  |  |  | 1,448 |
Issuance and registration of common shares |  |  | — |  |  |  | 2 |  |  |  | (791 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (789 | )
Shares repurchased and retired |  |  | — |  |  |  | (1 | ) |  |  | (4,973 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (4,974 | )
Shares issued in exchange for common units |  |  | — |  |  |  | 1 |  |  |  | 3,528 |  |  |  | — |  |  |  | — |  |  |  | (3,529 | ) |  |  | — |  |  |  | — |
Shares issued in exchange for redeemable stock |  |  | — |  |  |  | (4 | ) |  |  | 2,073 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,069 |
Redeemable stock fair market value adjustment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,325 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,325 | )
Adjustment for noncontrolling interests in Operating Partnership |  |  | — |  |  |  | — |  |  |  | 47 |  |  |  | — |  |  |  | — |  |  |  | (47 | ) |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | — |  |  |  | 13,869 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 13,869 |
Dividends on preferred stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,766 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,766 | )
Dividends on common stock ($4.4100 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (515,359 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (515,359 | )
Distributions on noncontrolling interests units ($4.4100 per unit) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (13,638 | ) |  |  | — |  |  |  | (13,638 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,602 |  |  |  | 4,602 |
EQUITY BALANCE SEPTEMBER 30, 2024 |  | $ | 9 |  |  | $ | 1,166 |  |  | $ | 7,413,674 |  |  | $ | (1,458,816 | ) |  | $ | (7,359 | ) |  | $ | 155,562 |  |  | $ | 27,358 |  |  | $ | 6,131,594 |

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- Definition Consolidated Statements of Equity [Text Block] + References No definition available. + Details
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Namespace Prefix: | maa_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition MAA Equity. + References No definition available. + Details
Name: | maa_MAAEquityAbstract
Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration