XML 103 R89.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Fair Value - Components of Fair Value and Other Relevant Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Fair Value of Servicing Rights | $ 8,212
Interest Rate Movement Effect | 0
Unrealized Impairment Loss | (1,989)
Total Fair Value Adjustment | 6,223
Rate lock commitments |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Notional/ Principal Amount | 26,800
Fair Value of Servicing Rights | 428
Interest Rate Movement Effect | 759
Unrealized Impairment Loss | 0
Total Fair Value Adjustment | 1,187
Forward sale commitments |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Notional/ Principal Amount | 559,079
Fair Value of Servicing Rights | 0
Interest Rate Movement Effect | (759)
Unrealized Impairment Loss | 0
Total Fair Value Adjustment | (759)
Loans held-for-sale, net |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Notional/ Principal Amount | 552,325
Fair Value of Servicing Rights | 7,784
Interest Rate Movement Effect | 0
Unrealized Impairment Loss | (1,989)
Total Fair Value Adjustment | $ 5,795

X
- Definition Amount of addition (reduction) to the amount at which an instrument classified in derivative. + References No definition available. + Details
Name: | abr_DerivativeFairValueAdjustmentAdditionReduction
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of impairment on our loans held-for-sale related to changes in market interest rates. + References No definition available. + Details
Name: | abr_EffectOfInterestRateMovement
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unrealized impairment losses during the period. + References No definition available. + Details
Name: | abr_UnrealizedImpairmentLosses
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(6) -SubTopic 50 -Topic 860 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-4 + Details
Name: | us-gaap_MortgageServicingRightsMSRImpairmentRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abr_ForwardSaleCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=abr_LoansHeldForSaleNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |