XML 84 R70.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Investments in Equity Affiliates (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | $ 79,303 | $ 79,130
UPB of Loans to Equity Affiliates | 1,688 |
Arbor Residential Investor LLC |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 32,743 | 46,951
UPB of Loans to Equity Affiliates | 0 |
AMAC Holdings III LLC |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 13,591 | 15,825
UPB of Loans to Equity Affiliates | 0 |
Fifth Wall Ventures |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 13,365 | 13,584
UPB of Loans to Equity Affiliates | 0 |
AWC Real Estate Opportunity Partners I LP |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 11,671 | 0
UPB of Loans to Equity Affiliates | 0 |
ARSR DPREF I LLC |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 5,163 | 0
UPB of Loans to Equity Affiliates | 0 |
Lightstone Value Plus REIT L.P. |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 1,895 | 1,895
UPB of Loans to Equity Affiliates | 0 |
Docsumo Pte. Ltd. |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 450 | 450
UPB of Loans to Equity Affiliates | 0 |
JT Prime |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 425 | 425
UPB of Loans to Equity Affiliates | 0 |
West Shore Café |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 0 | 0
UPB of Loans to Equity Affiliates | 1,688 |
Lexford Portfolio |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 0 | 0
UPB of Loans to Equity Affiliates | 0 |
East River Portfolio |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment in Equity Affiliates | 0 | $ 0
UPB of Loans to Equity Affiliates | $ 0 |

X
- Definition Amount of outstanding principal on mortgage loans due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership. + References No definition available. + Details
Name: | abr_AffiliatesDebtInstrumentPrincipalOutstanding
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in equity method investee and investment in and advance to affiliate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(18)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
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_InvestmentsInAndAdvancesToAffiliatesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=abr_DocsumoPte.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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