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Shareholders' Equity of MAA - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2023 | Aug. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2021
Equity [Line Items] |  |  |  |  |  |
Common stock, shares outstanding |  |  | 115,480,336 | 115,336,876 |  |
Total common shares and operating partnership units outstanding |  |  | 118,645,269 | 118,542,994 |  |
Common stock, shares authorized |  |  | 145,000,000 | 145,000,000 |  |
At The Market Offering |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Common stock shares sold |  |  | 0 | 0 | 0 |
Remaining common stock to sale |  |  | 4,000,000.0 |  |  |
Maximum [Member] | At The Market Offering |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  | 4,000,000.0
Dividend And Distribution Reinvestment And Share Purchase Plan |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Common stock issued for shareholders to reinvest distributions (shares) |  |  | 6,547 | 6,301 | 8,259 |
Dividend And Distribution Reinvestment And Share Purchase Plan | Minimum [Member] |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Optional cash investments in common shares |  |  | $ 250 |  |  |
Dividend And Distribution Reinvestment And Share Purchase Plan | Maximum [Member] |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Optional cash investments in common shares |  |  | $ 5,000 |  |  |
Common stock, shares authorized |  |  | 1,906,762 |  |  |
Discount rate on sale of common stock (percent) |  |  | 5.00% |  |  |
Equity Forward Sale Agreements [Member] |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Issuance and registration of common shares, Shares |  | 1,100,000 |  |  |  |
Common stock, price per share |  | $ 190.56 |  |  |  |
Common stock settlement under agreement |  | 0 |  |  |  |
Common shares attributable to dilutive effect of equity forward agreements |  |  | 0 | 0 |  |
Noncontrolling Interest [Member] |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Common Shares Issuable Upon Conversion Of Convertible Stock |  |  | 3,164,933 | 3,206,118 |  |
Subsequent Event [Member] |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |
Settled share amount | $ 1,100 |  |  |  |  |
Forward price per share | $ 185.23 |  |  |  |  |
Net proceeds | $ 203,700 |  |  |  |  |

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