MAA Equity - Summary of Changes in Total Equity and its Components (Parenthetical) (Details) - Mid America Apartment Communities Inc. Shareholders Equity [Member] - $ / shares	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Equity [Line Items]
Dividends on common stock, per share	$ 1.515	$ 1.47	$ 4.545	$ 4.41
Distributions on noncontrolling interests per units	$ 1.515	$ 1.47	$ 4.545	$ 4.41

Per-basic-share or unit amount, after investment expense, of dividend and interest investment income (loss) from investment held by investment company.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478494/946-205-50-7

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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration