Shareholders' Equity of MAA - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Jan. 31, 2023	Aug. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 30, 2021
Equity [Line Items]
Common stock, shares outstanding			115,480,336	115,336,876
Total common shares and operating partnership units outstanding			118,645,269	118,542,994
Common stock, shares authorized			145,000,000	145,000,000
At The Market Offering
Equity [Line Items]
Common stock shares sold			0	0	0
Remaining common stock to sale			4,000,000.0
Maximum [Member] | At The Market Offering
Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						4,000,000.0
Dividend And Distribution Reinvestment And Share Purchase Plan
Equity [Line Items]
Common stock issued for shareholders to reinvest distributions (shares)			6,547	6,301	8,259
Dividend And Distribution Reinvestment And Share Purchase Plan | Minimum [Member]
Equity [Line Items]
Optional cash investments in common shares			$ 250
Dividend And Distribution Reinvestment And Share Purchase Plan | Maximum [Member]
Equity [Line Items]
Optional cash investments in common shares			$ 5,000
Common stock, shares authorized			1,906,762
Discount rate on sale of common stock (percent)			5.00%
Equity Forward Sale Agreements [Member]
Equity [Line Items]
Issuance and registration of common shares, Shares		1,100,000
Common stock, price per share		$ 190.56
Common stock settlement under agreement		0
Common shares attributable to dilutive effect of equity forward agreements			0	0
Noncontrolling Interest [Member]
Equity [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock			3,164,933	3,206,118
Subsequent Event [Member]
Equity [Line Items]
Settled share amount	$ 1,100
Forward price per share	$ 185.23
Net proceeds	$ 203,700