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	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Equity [Line Items]
Dividends on common stock, per share	$ 1.4	$ 1.25	$ 2.8	$ 2.3375
Dividends on noncontrolling interests, per unit	$ 1.4	$ 1.25	$ 2.8	$ 2.3375

Per share or unit amount, after investment expense, of dividend and interest investment income (loss).

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//1943274/2147480737/946-205-50-7

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