XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.25.3

MAALP Capital - Summary of Changes in Total Capital and its Components (Parenthetical) (Details) - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
M A A L P [Member] | Limited Partner [Member] |  |  |  |
Capital Disclosure [Line Items] |  |  |  |
Distribution Made to Limited Partner, Distributions Declared, Per Unit | $ 1.515 | $ 1.47 | $ 4.545 | $ 4.41

X
- Definition [Line Items] for Capital Disclosure [Table] + References No definition available. + Details
Name: | maa_CapitalDisclosureLineItems
Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=maa_MAALPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PartnerCapitalComponentsAxis=us-gaap_LimitedPartnerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |