Organization (Details Textual)	3 Months Ended
	Mar. 31, 2020 Property apartment_home shares
Partially Owned Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	124
Number of apartment homes in apartment communities | apartment_home	32,846
Percentage of average ownership of portfolio	99.00%
Wholly And Partially Owned Consolidated Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	120
Number of apartment homes in apartment communities | apartment_home	32,704
AIMCO PROPERTIES, L.P [Member]
Organization [Line Items]
Common operating partnership units and equivalents outstanding | shares	159,196,780
Common operating partnership units and equivalents outstanding | shares	148,700,407
Percentage of the Aimco Operating Partnership's common partnership units and equivalents owned by Aimco	93.40%
Percentage of economic interest	94.80%