Organization (Details Textual)	3 Months Ended
	Mar. 31, 2019 apartment_home Property shares
Organization [Line Items]
Common partnership units and equivalents outstanding | shares	148,758,031
Percentage of the Aimco Operating Partnership's common partnership units and equivalents owned by Aimco	93.90%
Partially Owned Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	128
Number of apartment homes in apartment communities | apartment_home	34,349
Wholly And Partially Owned Consolidated Properties [Member]
Organization [Line Items]
Number of apartment communities | Property	124
Number of apartment homes in apartment communities | apartment_home	34,207
AIMCO PROPERTIES, L.P [Member]
Organization [Line Items]
Common partnership units and equivalents outstanding | shares	158,435,979