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MORTGAGE AND OTHER NOTES PAYABLE - MORTGAGE BY PROPERTY (Details) (Mortgages, USD $) | 3 Months Ended
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Mar. 31, 2015
Mortgage Loans on Real Estate [Line Items] |
Debt instrument face amount | $ 51,765,000 us-gaap_DebtInstrumentFaceAmount
Repayments of long-term debt | 28,000,000 us-gaap_RepaymentsOfLongTermDebt
Libor Plus 2.25% Mortgage Note | 1035 Third Ave |
Mortgage Loans on Real Estate [Line Items] |
Debt instrument face amount | 42,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = akr_LiborPlusTwoPointTwoFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_NewHydeParkMember
Description of variable rate basis | LIBOR
Basis spread on variable rate | 2.35%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = akr_LiborPlusTwoPointTwoFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_NewHydeParkMember
Effective rate | 2.52%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = akr_LiborPlusTwoPointTwoFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_NewHydeParkMember
Libor Plus 1.55% Mortgage Note | Lincoln Park Centre |
Mortgage Loans on Real Estate [Line Items] |
Debt instrument face amount | 0 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = akr_LiborPlusOnePointFiveFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_HeritageMember
Description of variable rate basis | LIBOR
Basis spread on variable rate | 1.45%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = akr_LiborPlusOnePointFiveFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_HeritageMember
Effective rate | 1.62%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = akr_LiborPlusOnePointFiveFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_HeritageMember
Repayments of long-term debt | 28,000,000 us-gaap_RepaymentsOfLongTermDebt / us-gaap_DebtInstrumentAxis = akr_LiborPlusOnePointFiveFivePercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_HeritageMember
4.66% Mortgage note | 163 Highland Avenue |
Mortgage Loans on Real Estate [Line Items] |
Debt instrument face amount | $ 9,765,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = akr_FivePointSixFourPercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_ParamusPlazaMember
Stated interest rate percentage | 4.66%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = akr_FivePointSixFourPercentMortgageNoteMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = akr_ParamusPlazaMember

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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