XML 72 R61.htm IDEA: XBRL DOCUMENT
v3.21.2

Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Schedule of Condensed Income Statement (Parenthetical) (Details) | Jan. 04, 2021 LandParcel
--- | ---
Equity Method Investments and Joint Ventures [Abstract] |
Number of land parcels sold by the Family Center at Riverdale | 2

X
- Definition Number of land parcels sold. + References No definition available. + Details
Name: | akr_NumberOfLandParcelsSold
Namespace Prefix: | akr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration