XML 78 R56.htm IDEA: XBRL DOCUMENT
v3.20.1

Investments in and Advances to Unconsolidated Affiliates - Fund Investments - Additional Information (Details) |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 21, 2019 USD ($) ft² | Jun. 29, 2019 USD ($) | Apr. 30, 2019 USD ($) ft² | Mar. 19, 2019 USD ($) ft² | Mar. 31, 2020 USD ($) property | Dec. 31, 2019 USD ($) | Dec. 31, 2014 property JointVenture | Oct. 31, 2018 segment
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Purchase Price |  |  |  |  | $ 19,204,000 | $ 324,339,000 |  |
Number of retail properties | property |  |  |  |  | 188 |  |  |
Fund V Family Center at Riverdale |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 89.42% |  |  |
Tri City Plaza |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 90.00% |  |  |
Frederick County Acquisitions |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 90.00% |  |  |
BSP I and BSP II |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  | 50.00% |
Number of Joint Ventures | JointVenture |  |  |  |  |  |  | 2 |
Broughton St. Portfolio Savannah, GA |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 50.00% |  |  |
Number of businesses acquired | property |  |  |  |  |  |  | 23 |
Number of retail properties | property |  |  |  |  | 13 |  |  |
Fund I Vs Broughton Street Portfolio Venture |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of retail properties | property |  |  |  |  |  |  | 8 |
Fund IV | Disposed of by sale | Broughton St. Portfolio Savannah, GA |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of retail properties | property |  |  |  |  |  |  | 2 |
BSP I |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  |  | 100.00%
BSP I | Consolidated Entity |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of retail properties | segment |  |  |  |  |  |  |  | 11
BSP II | Unconsolidated Affiliates |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of retail properties | property |  |  |  |  | 2 |  |  |
Fund III's Storage Post venture |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Distribution from cost method investment |  | $ 1,600,000 |  |  |  |  |  |
Cost method investments |  | 0 |  |  |  |  |  |
Fund III's Storage Post venture | Partnership Interest |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Distribution from cost method investment |  | $ 400,000 |  |  |  |  |  |
Riverdale, Utah | Fund V Family Center at Riverdale |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Joint venture interest percentage |  |  |  | 99.35% |  |  |  |
Undivided interest in property percentage |  |  |  | 90.00% |  |  |  |
Square footage of real estate property (in square feet) | ft² |  |  |  | 428,000 |  |  |  |
Purchase Price |  |  |  | $ 48,500,000 |  |  |  |
Vernon, Connecticut | Tri City Plaza |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Joint venture interest percentage |  |  | 90.00% |  |  |  |  |
Square footage of real estate property (in square feet) | ft² |  |  | 300,000 |  |  |  |  |
Purchase Price |  |  | $ 36,700,000 |  |  |  |  |
Frederick County, Maryland | Frederick County Acquisitions | 225,000 Square Foot Property |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Joint venture interest percentage | 90.00% |  |  |  |  |  |  |
Square footage of real estate property (in square feet) | ft² | 225,000 |  |  |  |  |  |  |
Purchase Price | $ 21,800,000 |  |  |  |  |  |  |
Frederick County, Maryland | Frederick County Acquisitions | 300,00 Square Foot Property |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Joint venture interest percentage | 90.00% |  |  |  |  |  |  |
Square footage of real estate property (in square feet) | ft² | 300,000 |  |  |  |  |  |  |
Purchase Price | $ 33,100,000 |  |  |  |  |  |  |

X
- Definition Distribution from cost method investment. + References No definition available. + Details
Name: | akr_DistributionFromCostMethodInvestment
Namespace Prefix: | akr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Joint venture interest percentage. + References No definition available. + Details
Name: | akr_JointVentureInterestPercentage
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of joint ventures. + References No definition available. + Details
Name: | akr_NumberOfJointVentures
Namespace Prefix: | akr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Undivided interest in property percentage. + References No definition available. + Details
Name: | akr_UndividedInterestInPropertyPercentage
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References No definition available. + Details
Name: | us-gaap_CostMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
Name: | us-gaap_NumberOfBusinessesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_FundVFamilyCenterAtRiverdaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_TriCityPlazaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_FrederickCountyAcquisitionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_BroughtonStreetPortfolioOneAndBroughtonStreetPortfolioTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_BroughtonStreetPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_FundIVsBroughtonStreetPortfolioVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_FundIVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfBySaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=akr_BroughtonStreetPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_BroughtonStreetPortfolioBSPISavannahGAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_AffiliatedEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_BroughtonStreetPortfolioTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=akr_UnconsolidatedAffiliatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=akr_FundIIIsStoragePostVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_PartnershipInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_UT
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_CT
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_MD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=akr_TwoHundredAndTwentyFiveThousandSquareFootPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=akr_ThreeHundredThousandSquareFootPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |