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v3.20.2

Subsequent Events - Schedule of Tenant Operating Status (Details) | Oct. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020
--- | --- | --- | ---
Core Portfolio |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Tenants Open for Business |  | 86.00% | 74.00%
Core Portfolio | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Tenants Open for Business | 86.00% |  |
Opportunity Funds |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Tenants Open for Business |  | 88.00% | 74.00%
Opportunity Funds | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Tenants Open for Business | 87.00% |  |

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- Definition Percentage of base rents derived from opened businesses. + References No definition available. + Details
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Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
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