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Shareholders' Equity of MAA - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 31, 2023 | Aug. 31, 2021 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023 | Nov. 30, 2021
Equity [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding |  |  | 116,880,291 | 116,686,730 | 116,880,291 | 116,686,730 | 116,694,124 |
Total common shares and operating partnership units outstanding |  |  | 119,955,843 | 119,834,510 | 119,955,843 | 119,834,510 |  |
Settled share amount | 1,100,000 |  |  |  |  |  |  |
Forward price per share | $ 185.23 |  |  |  |  |  |  |
Net proceeds | $ 203.7 |  |  |  |  |  |  |
Equity Forward Sale Agreements [Member] |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 1,100,000 |  |  |  |  |  |
Common stock, price per share |  | $ 190.56 |  |  |  |  |  |
At The Market Offering [Member] |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |
Common stock shares sold |  |  | 0 | 0 | 0 | 0 |  |
Remaining common stock to be issued |  |  |  |  | 4,000,000 |  |  |
Maximum [Member] | At The Market Offering [Member] |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |
Authorized aggregate shares |  |  |  |  |  |  |  | 4,000,000
Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |
Common Shares Issuable Upon Conversion Of Convertible Stock |  |  | 3,075,552 | 3,147,780 | 3,075,552 | 3,147,780 |  |

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