Real Estate Acquisitions and Dispositions - Schedule of Real Estate Asset Acquisitions and Dispositions (Details)	12 Months Ended
	Dec. 31, 2021 a ApartmentUnit
Birmingham AL [Member] | Land | Tutwiler [Member]
Acquisitionsand Disposals [Line Items]
Area of Land | a	9
Disposal Date	2021-09
Phoenix A Z [Member] | Land | Colonial Grand At Sweetwater [Member]
Acquisitionsand Disposals [Line Items]
Area of Land | a	5
Disposal Date	2021-10
Phoenix A Z [Member] | Land | Colonial Grand At Thunderbird [Member]
Acquisitionsand Disposals [Line Items]
Area of Land | a	9
Disposal Date	2021-12
Gulf Shores, AL [Member] | Land | Traditions Residential [Member]
Acquisitionsand Disposals [Line Items]
Area of Land | a	118
Disposal Date	2021-12
Novel Daybreak [Member] | Multifamily [Member] | UT
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-04
Number of Units in Real Estate Property	400
Novel West Midtown [Member] | Multifamily [Member] | GA
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-04
Number of Units in Real Estate Property	340
M A A Westshore [Member] | Tampa F L [Member] | Land
Acquisitionsand Disposals [Line Items]
Area of Land | a	19
Disposal Date	2021-06
Huntsville AL [Member] | Land | Colonial Promenade [Member]
Acquisitionsand Disposals [Line Items]
Area of Land | a	1
Disposal Date	2021-09
Crosswinds [Member] | Multifamily [Member] | MS
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-06
Number of Units in Real Estate Property	360
Pear Orchard [Member] | Multifamily [Member] | MS
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-06
Number of Units in Real Estate Property	389
Reflection Pointe [Member] | Multifamily [Member] | MS
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-06
Number of Units in Real Estate Property	296
Lakeshore Landing [Member] | Multifamily [Member] | MS
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-06
Number of Units in Real Estate Property	196
MAA Timbercrest [Member] | Multifamily [Member] | NC
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-11
Number of Units in Real Estate Property	282
Colonial Village At Greentree [Member] | Multifamily [Member] | GA
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-11
Number of Units in Real Estate Property	194
Colonial Village At Marsh Cove [Member] | Multifamily [Member] | GA
Acquisitionsand Disposals [Line Items]
Acquisition Date	2021-11
Number of Units in Real Estate Property	188