XML 64 R48.htm IDEA: XBRL DOCUMENT
v3.20.4

Organization, Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Rent Collections (Details) - COVID-19 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | ---
Core Portfolio | Second Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 76.00% | 74.00%
Core Portfolio | Third Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 87.00% | 85.00%
Core Portfolio | Fourth Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 91.00% |
Opportunity Funds | Second Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 67.00% | 65.00%
Opportunity Funds | Third Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 79.00% | 77.00%
Opportunity Funds | Fourth Quarter 2020 |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |
Percentage of rent collections | 82.00% |

X
- Definition Organization consolidation and presentation of financial statements. + References No definition available. + Details
Name: | akr_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems
Namespace Prefix: | akr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of rents collections. + References No definition available. + Details
Name: | akr_PercentageOfRentsCollections
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_UnusualOrInfrequentItemAxis=akr_CovidNineteenMember
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: | srt_RestatementAxis=akr_SecondQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=akr_ThirdQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=akr_FourthQuarterMember
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: |