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, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Line Items]
Dividends on common stock, per share	$ 1.47	$ 1.4	$ 4.41	$ 4.2
Distributions on noncontrolling interests per units	$ 1.47	$ 1.4	$ 4.41	$ 4.2