XML 140 R125.htm IDEA: XBRL DOCUMENT
v3.25.0.1

SCHEDULE IV - LOANS AND OTHER LENDING INVESTMENTS (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | $ 2,291,951
Carrying value of loans | 11,304,956
Carrying Amount | 11,033,997
Carrying Amount Subject to Delinquent Interest | 0
Amount of loans extended | 5,990,000
Federal income tax basis | $ 11,300,000
Threshold for reporting loans (as a percent) | 3.00%
Bridge Loans |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | $ 0
Carrying value of loans | 10,893,106
Carrying Amount | 10,652,225
Carrying Amount Subject to Delinquent Interest | 0
Mezzanine Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | 1,335,133
Carrying value of loans | 255,556
Carrying Amount | 234,749
Carrying Amount Subject to Delinquent Interest | 0
Preferred Equity Investments | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | 956,818
Carrying value of loans | 148,845
Carrying Amount | 140,414
Carrying Amount Subject to Delinquent Interest | 0
Other Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | 0
Carrying value of loans | 7,449
Carrying Amount | 6,609
Carrying Amount Subject to Delinquent Interest | 0
Multifamily | Bridge Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | 0
Carrying value of loans | 8,725,429
Carrying Amount | 8,588,684
Carrying Amount Subject to Delinquent Interest | $ 0
Multifamily | Bridge Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | (0.0125)
Floor rate (as a percent) | 0.10%
Fixed interest rate (as a percent) | 0.00%
Multifamily | Bridge Loans | Loans less than 3% | Maximum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0575
Floor rate (as a percent) | 5.36%
Fixed interest rate (as a percent) | 11.00%
Multifamily | Mezzanine Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | $ 1,335,133
Carrying value of loans | 239,203
Carrying Amount | 221,689
Carrying Amount Subject to Delinquent Interest | $ 0
Multifamily | Mezzanine Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 0.00%
Multifamily | Mezzanine Loans | Loans less than 3% | Maximum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 14.00%
Multifamily | Preferred Equity Investments | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | $ 927,026
Carrying value of loans | 143,645
Carrying Amount | 137,163
Carrying Amount Subject to Delinquent Interest | $ 0
Multifamily | Preferred Equity Investments | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 0.00%
Multifamily | Preferred Equity Investments | Loans less than 3% | Maximum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 16.00%
Multifamily | Other Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Floor rate (as a percent) | 4.00%
Fixed interest rate (as a percent) | 4.25%
Prior Liens | $ 0
Carrying value of loans | 4,367
Carrying Amount | 3,531
Carrying Amount Subject to Delinquent Interest | $ 0
Multifamily | Other Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0550
Single‑Family Rental | Bridge Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | $ 0
Carrying value of loans | 1,993,890
Carrying Amount | 1,967,835
Carrying Amount Subject to Delinquent Interest | $ 0
Single‑Family Rental | Bridge Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0295
Floor rate (as a percent) | 0.10%
Single‑Family Rental | Bridge Loans | Loans less than 3% | Maximum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0620
Floor rate (as a percent) | 5.36%
Single‑Family Rental | Other Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Floor rate (as a percent) | 0.25%
Prior Liens | $ 0
Carrying value of loans | 3,082
Carrying Amount | 3,078
Carrying Amount Subject to Delinquent Interest | $ 0
Single‑Family Rental | Other Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0490
Land | Bridge Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0400
Floor rate (as a percent) | 0.15%
Fixed interest rate (as a percent) | 13.00%
Prior Liens | $ 0
Carrying value of loans | 125,877
Carrying Amount | 47,977
Carrying Amount Subject to Delinquent Interest | $ 0
Land | Mezzanine Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 0.00%
Prior Liens | $ 0
Carrying value of loans | 9,333
Carrying Amount | 9,333
Carrying Amount Subject to Delinquent Interest | $ 0
Land | Preferred Equity Investments | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 0.00%
Prior Liens | $ 0
Carrying value of loans | 3,500
Carrying Amount | 3,251
Carrying Amount Subject to Delinquent Interest | $ 0
Office | Bridge Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0350
Prior Liens | $ 0
Carrying value of loans | 35,410
Carrying Amount | 35,229
Carrying Amount Subject to Delinquent Interest | 0
Retail | Bridge Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Prior Liens | 0
Carrying value of loans | 12,500
Carrying Amount | 12,500
Carrying Amount Subject to Delinquent Interest | $ 0
Retail | Bridge Loans | Loans less than 3% | Minimum |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0350
Floor rate (as a percent) | 1.00%
Retail | Mezzanine Loans | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Financing receivable, basis spread on variable rate | 0.0350
Floor rate (as a percent) | 1.00%
Fixed interest rate (as a percent) | 0.00%
Prior Liens | $ 0
Carrying value of loans | 7,020
Carrying Amount | 3,727
Carrying Amount Subject to Delinquent Interest | $ 0
Commercial | Preferred Equity Investments | Loans less than 3% |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |
Fixed interest rate (as a percent) | 6.00%
Prior Liens | $ 29,792
Carrying value of loans | 1,700
Carrying Amount | 0
Carrying Amount Subject to Delinquent Interest | $ 0

X
- Definition Financing Receivable, Basis Spread On Variable Rate + References No definition available. + Details
Name: | abr_FinancingReceivableBasisSpreadOnVariableRate
Namespace Prefix: | abr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying value of loans derived after deducting unearned revenue and other holdbacks. + References No definition available. + Details
Name: | abr_LoanCarryingValue
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the minimum LIBOR rate on the loans receivable. + References No definition available. + Details
Name: | abr_LoansReceivableFloorRate
Namespace Prefix: | abr_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The threshold percentage for reporting loans in the schedule of mortgage loans on real estate. + References No definition available. + Details
Name: | abr_ThresholdPercentageForReportingLoans
Namespace Prefix: | abr_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of federal income tax basis of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column G -Footnote 8 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)(Footnote 8)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstateFederalIncomeTaxBasis1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Interest rate of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column B -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstateInterestRate
Namespace Prefix: | srt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstateLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of principal due on delinquent mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column H -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column H)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of prior lien on real estate securing mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column E -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstatePriorLiens1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | us-gaap_MortgageLoansOnRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of mortgage loan in investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, renewed or extended. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
Name: | us-gaap_MortgageLoansOnRealEstateRenewedAndExtendedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_BridgeLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=abr_MezzanineLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=abr_LoansLessThanThreePercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=abr_PreferredEquityInvestmentsInMortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=abr_OtherLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=abr_RealEstateSingleFamilyRentalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_LandAndLandImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_OfficeBuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_RetailSiteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |