XML 66 R51.htm IDEA: XBRL DOCUMENT
v3.3.1.900

ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) property | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Apr. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  | $ 5,000,000 | $ 0 | $ 1,500,000 |
Impairment of asset |  | 5,000,000 | 0 | 8,183,000 |
Deferred rent receivables, net |  | 31,300,000 | 28,000,000 |  |
Allowance for doubtful accounts receivable |  | 7,500,000 | 6,000,000 |  |
Additional reserves |  | $ 2,700,000 |  |  |
Required distribution rate to maintain REIT status (in percent) |  | 90.00% |  |  |
Funiture, Fixtures and Equipment [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Property, plant and equipment, useful life, minimum (In Years) |  | 5 years |  |  |
Minimum [Member] | Building [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Property, plant and equipment, useful life, minimum (In Years) |  | 30 years |  |  |
Maximum [Member] | Building [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Property, plant and equipment, useful life, minimum (In Years) |  | 40 years |  |  |
Operating Partnership, as General Partner or Managing Member [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Equity Interest Held By Operating Partnership |  | 95.00% |  |  |
Remaining funds rate of distribution to operating partnership (in percent) |  | 20.00% |  |  |
Institutional Investors [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Remaining funds rate of distribution to all partners (in percent) |  | 80.00% |  |  |
Fund I and Mervyns I [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Equity Interest Held By Operating Partnership | [1] | 37.78% |  |  |
Operating partnership share of capital | [1] | 22.22% |  |  |
Fund II and Mervyns II [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Equity Interest Held By Operating Partnership | [2] | 20.00% |  |  |
Operating partnership share of capital | [2] | 20.00% |  |  |
Fund III [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Equity Interest Held By Operating Partnership | [3] | 24.54% |  |  |
Operating partnership share of capital | [3] | 24.54% |  |  |
Fund III [Member] | Walnut Hill Plaza [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  |  | 1,500,000 |  |
Fund III [Member] | Sheepshead Bay [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  |  | 6,700,000 |  |
Fund III [Member] | Operating Partnership, as General Partner or Managing Member [Member] | Sheepshead Bay [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  |  | 1,300,000 |  |
Fund IV [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Equity Interest Held By Operating Partnership |  | 23.12% |  |  |
Operating partnership share of capital |  | 23.12% |  |  |
Core Portfolio [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Number of retail properties | property |  | 90 |  |  |
Properties owned percentage |  | 100.00% |  |  |
Impairment of asset |  | $ 5,000,000 |  | 1,500,000 |
Opportunity Funds [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Number of retail properties | property |  | 57 |  |  |
Impairment of asset |  | $ 0 |  | $ 0 |
Core Portfolio and Opportunity Funds [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Number of retail properties | property |  | 147 |  |  |
Non-Recourse Mortgage [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Borrowings, amount |  | $ 26,300,000.0 |  |  |
Route 202 Shopping Center [Member] | Core Portfolio [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Percent Owned |  | 77.78% |  |  | 77.78%
Brandywine Portfolio [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  | $ 5,000,000 |  |  |
Impairment of asset |  | 5,000,000 |  |  |
Brandywine Portfolio [Member] | Operating Partnership, as General Partner or Managing Member [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Impairment of asset |  | 1,100,000 |  |  |
New Accounting Pronouncement, Early Adoption, Effect [Member] | Long-term Debt [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Deferred finance costs, net |  | (11,700,000) | (11,900,000) |  |
New Accounting Pronouncement, Early Adoption, Effect [Member] | Deferred Charges [Member] |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Deferred finance costs, net |  | $ 11,700,000 | $ 11,900,000 |  |
[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] | 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.
[3] | During 2015, the Company acquired an additional 4.6% interest in Fund III from a limited partner for $7.3 million, giving the Company an aggregate 24.54% interest.

X
- Definition Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Share of Capital + References No definition available. + Details
Name: | akr_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipShareOfCapital
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Organization, Consolidation and Presentation of Financial Statements [Line Items] + References No definition available. + Details
Name: | akr_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems
Namespace Prefix: | akr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Properties Owned Percentage + References No definition available. + Details
Name: | akr_PropertiesOwnedPercentage
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Remaining Funds Rate of Distribution to All Partners + References No definition available. + Details
Name: | akr_RemainingFundsRateOfDistributionToAllPartners
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Remaining Funds Rate of Distribution to Partnership + References No definition available. + Details
Name: | akr_RemainingFundsRateOfDistributionToPartnership
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Required Distribution Rate to Maintain REIT Status + References No definition available. + Details
Name: | akr_RequiredDistributionRateToMaintainReitStatus
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524 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 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: 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 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property, by the lessor or lessee, respectively. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453741&loc=d3e40879-112712 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39927-112707 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 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
Name: | us-gaap_DeferredRentReceivablesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The increase (decrease) in the allowance for credit losses related to financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=akr_FunitureFixturesAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=akr_OperatingPartnershipAsGeneralPartnerOrManagingMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=akr_InstitutionalInvestorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=akr_FundIAndMervynsIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=akr_FundIiAndMervynsIiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=akr_FundIiiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=akr_WalnutHillPlazaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=akr_SheepsheadBayMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=akr_FundIvMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=akr_CorePortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=akr_OpportunityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=akr_CorePortfolioandOpportunityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=akr_NonRecourseMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_Route202ShoppingCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=akr_BrandywinePortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=akr_OperatingPartnershipAsGeneralPartnerOrManagingMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NewAccountingPronouncementEarlyAdoptionAxis=us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_LongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=akr_DeferredChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |