Organization (Details Textual)	6 Months Ended
	Jun. 30, 2018 Units Property shares
Organization [Line Items]
Common partnership units and equivalents outstanding | shares	157,351,428
Percentage of the Aimco Operating Partnership's common partnership units and equivalents owned by Aimco	94.60%
AIMCO PROPERTIES, L.P [Member]
Organization [Line Items]
Common partnership units and equivalents outstanding | shares	166,403,852
Asset Management [Member] | Partially Owned Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	46
Number of apartment homes in apartment communities | Units	6,898
Asset Management [Member] | Wholly And Partially Owned Consolidated Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	39
Number of apartment homes in apartment communities | Units	6,211
Aimco Real Estate [Member] | Partially Owned Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	138
Number of apartment homes in apartment communities | Units	37,897
Aimco Real Estate [Member] | Wholly And Partially Owned Consolidated Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	134
Number of apartment homes in apartment communities | Units	37,755
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Aimco Real Estate [Member] | Wholly And Partially Owned Consolidated Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	3
Number of apartment homes in apartment communities | Units	513