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Basis of Presentation and Summary of Significant Accounting Policies - Noncontrolling Interests in Aimco Operating Partnership (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Noncontrolling Interests in Aimco Operating Partnership [Abstract]      
Weighted Average Ownership Percentage in the Aimco Operating Partnership by holders of OP Units 5.00%aiv_NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod 5.20%aiv_NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod 5.70%aiv_NoncontrollingInterestWeightedAverageOwnershipPercentageByNoncontrollingOwnersDuringPeriod