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Business Segments - (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Number of reportable segments 2us-gaap_NumberOfReportableSegments    
Conventional Real Estate [Member]      
Segment Reporting Information [Line Items]      
Number of apartment communities in segments 144us-gaap_NumberOfRealEstateProperties
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_ConventionalRealEstateMember
   
Number of apartment homes 43,393us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_ConventionalRealEstateMember
   
Affordable Real Estate Operations [Member]      
Segment Reporting Information [Line Items]      
Number of apartment communities in segments 59us-gaap_NumberOfRealEstateProperties
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_AffordableRealEstateMember
   
Number of apartment homes 8,943us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_AffordableRealEstateMember
   
Operating Segments [Member] | Conventional Real Estate [Member]      
Segment Reporting Information [Line Items]      
Captial Additions $ 355.4us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_ConventionalRealEstateMember
$ 365.3us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_ConventionalRealEstateMember
$ 252.3us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_ConventionalRealEstateMember
Operating Segments [Member] | Affordable Real Estate Operations [Member]      
Segment Reporting Information [Line Items]      
Captial Additions $ 12.1us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_AffordableRealEstateMember
$ 10.7us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_AffordableRealEstateMember
$ 19.8us-gaap_PropertyPlantAndEquipmentAdditions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= aiv_AffordableRealEstateMember