XML 73 R55.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Notes Receivable, Net - Schedule of Notes Receivable (Details) $ in Thousands | Dec. 31, 2017 USD ($) debtinstrument | Dec. 31, 2016 USD ($)
--- | --- | ---
Mortgage Loans on Real Estate [Line Items] |  |
Net carrying amount of notes receivable | $ | $ 153,829 | $ 276,163
Number of instruments held | debtinstrument | 6 |
Core Portfolio |  |
Mortgage Loans on Real Estate [Line Items] |  |
Net carrying amount of notes receivable | $ | $ 101,695 | 216,400
Number of instruments held | debtinstrument | 3 |
Core Portfolio | Minimum |  |
Mortgage Loans on Real Estate [Line Items] |  |
Effective interest rate | 6.00% |
Core Portfolio | Maximum |  |
Mortgage Loans on Real Estate [Line Items] |  |
Effective interest rate | 8.10% |
Fund Portfolio | Fund II |  |
Mortgage Loans on Real Estate [Line Items] |  |
Net carrying amount of notes receivable | $ | $ 31,778 | 31,007
Number of instruments held | debtinstrument | 1 |
Effective interest rate | 2.50% |
Fund Portfolio | Fund III |  |
Mortgage Loans on Real Estate [Line Items] |  |
Net carrying amount of notes receivable | $ | $ 5,106 | 4,506
Number of instruments held | debtinstrument | 1 |
Effective interest rate | 18.00% |
Fund Portfolio | Fund IV |  |
Mortgage Loans on Real Estate [Line Items] |  |
Net carrying amount of notes receivable | $ | $ 15,250 | $ 24,250
Number of instruments held | debtinstrument | 1 |
Effective interest rate | 15.30% |

X
- Definition Debt Instruments, Number Of Instruments Held + References No definition available. + Details
Name: | akr_DebtInstrumentsNumberOfInstrumentsHeld
Namespace Prefix: | akr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Mortgage Loans on Real Estate, Effective Interest Rate + References No definition available. + Details
Name: | akr_MortgageLoansOnRealEstateEffectiveInterestRate
Namespace Prefix: | akr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The carrying amount of the outstanding balance due under the mortgage loan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_MortgageLoansOnRealEstateLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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