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Real Estate Acquisitions and Dispositions - Schedule of Real Estate Asset Acquisitions and Dispositions (Details) - Land	12 Months Ended
	Dec. 31, 2020 a ApartmentUnit
Huntsville, AL [Member] | Colonial Promenade [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property | ApartmentUnit	27
Disposal Date	September 2020
MAA Windmill Hill [Member] | Austin TX [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	22
Acquisition Date	2020-01
Novel Val Vista [Member] | Phoenix, AZ [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	13	[1]
Acquisition Date	2020-12	[1]
MAA Central Park [Member] | Denver CO [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	27
Acquisition Date	2020-11
[1] This pre-purchase multifamily community development is being developed through a joint venture with a local developer. The Company owns 80% of the joint venture that owns this property.

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Acquisitions and Disposals [Line Items]

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Real estate acquisition date.

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Real estate, disposition date.

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Area of land held.

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The number of units in a real estate property owned as of the balance sheet date.

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