Non-Recourse Property Debt and Credit Agreement - (Details 2) (USD $)
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12 Months Ended |
1 Months Ended |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Jan. 31, 2015
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Non-Recourse Property Debt (Textual) [Abstract] |
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Estimated Fair Value Of Unencumbered Real Estate |
$ 1,000,000,000aiv_EstimatedFairValueOfUnencumberedRealEstate |
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Credit Agreement |
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Revolving loan commitments |
600,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity |
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Initial interest rate for credit facility |
LIBOR, plus 1.875%, or, at our option, Prime plus 0.5% |
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Credit facility maturity date |
Sep. 01, 2017 |
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Credit Facility Extension option |
an additional one-year period |
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Revolving credit facility borrowings |
112,330,000us-gaap_LineOfCredit |
50,400,000us-gaap_LineOfCredit |
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Remaining borrowing capacity under credit facility |
445,900,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity |
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Amount outstanding for undrawn letters of credit issued under revolving credit facility |
41,800,000us-gaap_LettersOfCreditOutstandingAmount |
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Line of Credit Facility, Interest Rate at Period End |
2.08%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd |
3.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd |
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Proceeds from Issuance of Common Stock |
0us-gaap_ProceedsFromIssuanceOfCommonStock |
0us-gaap_ProceedsFromIssuanceOfCommonStock |
594,379,000us-gaap_ProceedsFromIssuanceOfCommonStock |
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Fixed Rate |
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Non-Recourse Property Debt (Textual) [Abstract] |
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Debt Instrument, Maximum Maturity Date |
Feb. 28, 2061 |
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Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum |
2.28%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = aiv_FixedRateMember |
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Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum |
8.50%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = aiv_FixedRateMember |
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Debt, Weighted Average Interest Rate |
4.99%us-gaap_DebtWeightedAverageInterestRate / us-gaap_DebtInstrumentAxis = aiv_FixedRateMember |
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Debt Instrument, Collateral Amount |
7,089,800,000us-gaap_DebtInstrumentCollateralAmount / us-gaap_DebtInstrumentAxis = aiv_FixedRateMember |
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Variable Rate |
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Non-Recourse Property Debt (Textual) [Abstract] |
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Debt Instrument, Maximum Maturity Date |
Jul. 31, 2033 |
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Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum |
0.05%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = aiv_VariableRateMember |
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Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum |
1.88%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = aiv_VariableRateMember |
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Debt, Weighted Average Interest Rate |
1.14%us-gaap_DebtWeightedAverageInterestRate / us-gaap_DebtInstrumentAxis = aiv_VariableRateMember |
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Debt Instrument, Collateral Amount |
198,500,000us-gaap_DebtInstrumentCollateralAmount / us-gaap_DebtInstrumentAxis = aiv_VariableRateMember |
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Unencumbered Real Estate Property [Member] |
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Non-Recourse Property Debt (Textual) [Abstract] |
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Number of apartment communities |
15us-gaap_NumberOfRealEstateProperties / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = aiv_UnencumberedRealEstatePropertyMember |
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Pledged as collateral [Member] | Fixed Rate |
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Non-Recourse Property Debt (Textual) [Abstract] |
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Number of apartment communities |
164us-gaap_NumberOfRealEstateProperties / us-gaap_DebtInstrumentAxis = aiv_FixedRateMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = aiv_PledgedascollateralMember |
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Pledged as collateral [Member] | Variable Rate |
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Non-Recourse Property Debt (Textual) [Abstract] |
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Number of apartment communities |
7us-gaap_NumberOfRealEstateProperties / us-gaap_DebtInstrumentAxis = aiv_VariableRateMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = aiv_PledgedascollateralMember |
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Class A Common Stock Offering [Member] |
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Credit Agreement |
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Proceeds from Issuance of Common Stock |
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$ 367,000,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_SubsequentEventTypeAxis = aiv_ClassACommonStockOfferingMember |