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Earnings Per OP Unit of MAALP - Schedule of Diluted Earnings per Common Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Sep. 30, 2022 | Mar. 31, 2022
Earnings Per Share Disclosure [Line Items] |  |  |
Net income | $ 139,574 |  | $ 113,577
Net loss attributable to noncontrolling interests | (3,664) |  | (2,775)
Distributions to MAALP Series I preferred unitholders | (922) |  | (922)
Income from continuing operations available for common shareholders, adjusted | 134,928 |  | 109,801
Net income available for MAA common shareholders, adjusted | $ 134,988 |  | $ 109,880
Effect of dilutive securities | 220 |  | 459
Weighted average common shares - diluted | 116,402 |  | 115,718
Limited Partnership [Member] |  |  |
Earnings Per Share Disclosure [Line Items] |  |  |
Net income | $ 139,574 |  | $ 113,577
Net loss attributable to noncontrolling interests | 0 | $ 0 | 293
Income from continuing operations allocated to unvested restricted shares | (60) |  | (79)
Distributions to MAALP Series I preferred unitholders | (922) |  | (922)
Net income available for MAALP common unitholders, adjusted | $ 138,592 |  | $ 112,869
Weighted average common units - basic | 119,340 |  | 118,462
Earnings per common unit - basic | $ 1.16 |  | $ 0.95
Net income available for MAALP common unitholders, adjusted | $ 138,652 |  | $ 112,948
Effect of dilutive securities | 220 |  | 459
Weighted average common shares - diluted | 119,560 |  | 118,921
Earnings per common unit - diluted | $ 1.16 |  | $ 0.95

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