XML 58 R34.htm IDEA: XBRL DOCUMENT v2.4.1.9
ORGANIZATION AND BASIS OF PRESENTATION Summary of General Terms and Operating Partnership's Equity Interests (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Fund I and Mervyns I  
Organization, Consolidation and Presentation of Financial Statements [Line Items]  
Operating Partnership Share of Capital 22.22%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipShareOfCapital
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1]
Committed Capital $ 90.0us-gaap_GeneralPartnersContributedCapital
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1]
Capital Called 86.6us-gaap_PartnersCapitalAccountContributions
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1],[2]
Equity Interest Held By Operating Partnership 37.78%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1]
Preferred Return 9.00%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersPreferredReturn
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1]
Capital Returned 192.3us-gaap_PartnersCapitalAccountDistributions
/ dei_LegalEntityAxis
= akr_FundIAndMervynsIMember		 [1],[2]
Fund II and Mervyns II  
Organization, Consolidation and Presentation of Financial Statements [Line Items]  
Operating Partnership Share of Capital 20.00%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipShareOfCapital
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [3]
Committed Capital 300.0us-gaap_GeneralPartnersContributedCapital
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [3]
Capital Called 300.0us-gaap_PartnersCapitalAccountContributions
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [2],[3]
Equity Interest Held By Operating Partnership 20.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [3]
Preferred Return 8.00%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersPreferredReturn
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [3]
Capital Returned 131.6us-gaap_PartnersCapitalAccountDistributions
/ dei_LegalEntityAxis
= akr_FundIiAndMervynsIiMember		 [2],[3]
Fund III  
Organization, Consolidation and Presentation of Financial Statements [Line Items]  
Operating Partnership Share of Capital 19.90%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipShareOfCapital
/ dei_LegalEntityAxis
= akr_FundIiiMember
Committed Capital 475.0us-gaap_GeneralPartnersContributedCapital
/ dei_LegalEntityAxis
= akr_FundIiiMember		 [3]
Capital Called 381.6us-gaap_PartnersCapitalAccountContributions
/ dei_LegalEntityAxis
= akr_FundIiiMember		 [2]
Equity Interest Held By Operating Partnership 19.90%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ dei_LegalEntityAxis
= akr_FundIiiMember
Preferred Return 6.00%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersPreferredReturn
/ dei_LegalEntityAxis
= akr_FundIiiMember
Capital Returned 403.1us-gaap_PartnersCapitalAccountDistributions
/ dei_LegalEntityAxis
= akr_FundIiiMember		 [2]
Fund IV  
Organization, Consolidation and Presentation of Financial Statements [Line Items]  
Operating Partnership Share of Capital 23.12%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipShareOfCapital
/ dei_LegalEntityAxis
= akr_FundIvMember
Committed Capital 540.6us-gaap_GeneralPartnersContributedCapital
/ dei_LegalEntityAxis
= akr_FundIvMember		 [3]
Capital Called 140.2us-gaap_PartnersCapitalAccountContributions
/ dei_LegalEntityAxis
= akr_FundIvMember		 [2]
Equity Interest Held By Operating Partnership 23.12%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ dei_LegalEntityAxis
= akr_FundIvMember
Preferred Return 6.00%akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersPreferredReturn
/ dei_LegalEntityAxis
= akr_FundIvMember
Capital Returned $ 101.9us-gaap_PartnersCapitalAccountDistributions
/ dei_LegalEntityAxis
= akr_FundIvMember		 [2]
[1] Fund I and Mervyns I have returned all capital and preferred return. The Operating Partnership is now entitled to a Promote on all future cash distributions.
[2] Represents the total for the Funds, including the Operating Partnership and noncontrolling interests' shares.
[3] During 2013, a distribution of $47.1 million was made to the Fund II investors, including the Operating Partnership. This amount is subject to recontribution to Fund II until December 2016, if needed to fund the on-going development and construction of existing projects.