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MAA Equity - Summary of Changes in Total Equity and its Components (Details) - Mid America Apartment Communities Inc. Shareholders Equity [Member] - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | $ 6,279,955 | $ 6,189,748
Net Income Including Portion Attributable to Noncontrolling Interest | 147,610 | 139,574
Other comprehensive income - derivative instruments | 517 | 278
Issuance and registration of common shares | 93 | 203,897
Shares repurchased and retired | (842) | (1,920)
Shares issued in exchange for common units | 0 |
Shares issued in exchange for redeemable stock |  | 581
Redeemable stock fair market value adjustment | 402 | 793
Amortization of unearned compensation | 6,525 | 6,379
Dividends, Preferred Stock, Cash | (922) | (922)
Dividends on common stock | (171,620) | (163,252)
Dividends on noncontrolling interest units | (4,604) | (4,416)
Contribution from noncontrolling interest | 276 | 256
Ending Balance | 6,257,390 | 6,370,996
Preferred Stock [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 9 | 9
Ending Balance | 9 | 9
Common Stock [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 1,168 | 1,152
Issuance and registration of common shares |  | 11
Shares issued in exchange for redeemable stock |  | 4
Ending Balance | 1,168 | 1,167
Additional Paid-in Capital [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 7,399,921 | 7,202,834
Issuance and registration of common shares | 93 | 203,886
Shares repurchased and retired | (842) | (1,920)
Shares issued in exchange for common units | 594 | 479
Shares issued in exchange for redeemable stock |  | 577
Adjustment for noncontrolling interests in Operating Partnership | (102) | (3,928)
Amortization of unearned compensation | 6,525 | 6,379
Ending Balance | 7,406,189 | 7,408,307
Accumulated Distributions in Excess of Net Income [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | (1,298,263) | (1,188,854)
Net income attributable to MAA | 143,749 | 135,910
Redeemable stock fair market value adjustment | 402 | 793
Dividends, Preferred Stock, Cash | (922) | (922)
Dividends on common stock | (171,620) | (163,252)
Ending Balance | (1,326,654) | (1,216,325)
Accumulated Other Comprehensive Loss [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | (8,764) | (10,052)
Other comprehensive income - derivative instruments | 501 | 261
Ending Balance | (8,263) | (9,791)
Noncontrolling Interests - Operating Partnership [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 163,128 | 163,595
Net Income Attributable to Noncontrolling Interest | 3,861 | 3,664
Other comprehensive income - derivative instruments | 16 | 17
Shares issued in exchange for common units | (594) | (479)
Adjustment for noncontrolling interests in Operating Partnership | 102 | 3,928
Dividends on noncontrolling interest units | (4,604) | (4,416)
Ending Balance | 161,909 | 166,309
Noncontrolling Interests - Consolidated Real Estate Entities [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 22,756 | 21,064
Contribution from noncontrolling interest | 276 | 256
Ending Balance | $ 23,032 | $ 21,320

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