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Earnings Per Common Share of MAA (Tables) | 12 Months Ended
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Dec. 31, 2022
Earnings Per Common Share Of M A A [Abstract] |
Schedule of Computation of Earnings Per Share | For the years ended December 31, 2022, 2021 and 2020, MAA’s diluted earnings per share was computed using the treasury stock method as presented below (dollars and shares in thousands, except per share amounts):
Calculation of Earnings per common share - basic |  | 2022 |  |  | 2021 |  |  | 2020 |  |
Net income |  | $ | 654,776 |  |  | $ | 550,702 |  |  | $ | 264,015 |  |
Net income attributable to noncontrolling interests |  |  | (17,340 | ) |  |  | (16,911 | ) |  |  | (9,053 | ) |
Unvested restricted shares (allocation of earnings) |  |  | (438 | ) |  |  | (539 | ) |  |  | (338 | ) |
Dividends to MAA Series I preferred shareholders |  |  | (3,688 | ) |  |  | (3,688 | ) |  |  | (3,688 | ) |
Net income available for MAA common shareholders, adjusted |  | $ | 633,310 |  |  | $ | 529,564 |  |  | $ | 250,936 |  |
Weighted average common shares - basic |  |  | 115,344 |  |  |  | 114,717 |  |  |  | 114,188 |  |
Earnings per common share - basic |  | $ | 5.49 |  |  | $ | 4.62 |  |  | $ | 2.20 |  |
Calculation of Earnings per common share - diluted |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 654,776 |  |  | $ | 550,702 |  |  | $ | 264,015 |  |
Net income attributable to noncontrolling interests (1) |  |  | (17,340 | ) |  |  | (16,911 | ) |  |  | (9,053 | ) |
Dividends to MAA Series I preferred shareholders |  |  | (3,688 | ) |  |  | (3,688 | ) |  |  | (3,688 | ) |
Net income available for MAA common shareholders, adjusted |  | $ | 633,748 |  |  | $ | 530,103 |  |  | $ | 251,274 |  |
Weighted average common shares - basic |  |  | 115,344 |  |  |  | 114,717 |  |  |  | 114,188 |  |
Effect of dilutive securities |  |  | 239 |  |  |  | 322 |  |  |  | 312 |  |
Weighted average common shares - diluted |  |  | 115,583 |  |  |  | 115,039 |  |  |  | 114,500 |  |
Earnings per common share - diluted |  | $ | 5.48 |  |  | $ | 4.61 |  |  | $ | 2.19 |  |

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- Definition Earnings per common share of MAA. + References No definition available. + Details
Name: | maa_EarningsPerCommonShareOfMAAAbstract
Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration