XML 112 R96.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Segment Information - Origination Data (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($)
Segment Information |  |  |
Origination Volumes | $ 6,347,752,000 | $ 6,810,666,000 | $ 4,829,721,000
Loan Sales Data: |  |  |
Sales margin (fee-based services as a % of loan sales) | 1.92% | 1.44% | 1.49%
MSR rate (MSR income as a % of loan commitments) | 2.05% | 2.43% | 1.88%
Structured Transaction Business |  |  |
Segment Information |  |  |
Total new loan originations | $ 9,720,515,000 | $ 2,433,679,000 | $ 2,803,251,000
Loan payoffs / paydowns | 2,516,771,000 | 1,208,071,000 | 1,748,387,000
Structured Transaction Business | Bridge Loans |  |  |
Segment Information |  |  |
Total new loan originations | 9,490,402,000 | 2,312,061,000 | 2,598,658,000
Structured Transaction Business | Mezzanine Loans |  |  |
Segment Information |  |  |
Total new loan originations | 175,225,000 | 45,122,000 | 127,784,000
Structured Transaction Business | Preferred equity investments |  |  |
Segment Information |  |  |
Total new loan originations | 28,650,000 | 31,600,000 | 35,130,000
Structured Transaction Business | Other loans |  |  |
Segment Information |  |  |
Total new loan originations | 26,238,000 | 44,896,000 | 41,679,000
Structured Transaction Business | SFR - Fixed Rate | Bridge Loans |  |  |
Segment Information |  |  |
Loans committed | $ 729,500,000,000 | $ 261,500,000 | 63,200,000
Number of loans under the loan portfolio | 103 |  |
Structured Transaction Business | SFR - Fixed Rate | Other loans |  |  |
Segment Information |  |  |
Number of loans under the loan portfolio | loan | 1 | 9 |
Total loan commitment | $ 26,200,000 | $ 37,200,000 |
Agency Business |  |  |
Segment Information |  |  |
Origination Volumes | 6,409,558,000 | 6,711,969,000 | 4,810,225,000
Loan Sales Data: |  |  |
Loan Sales | 6,415,169,000 | 6,587,728,000 | 4,401,112,000
Agency Business | SFR - Fixed Rate |  |  |
Segment Information |  |  |
Origination Volumes | 136,931,000 |  |
Loan Sales Data: |  |  |
Loan Sales | 192,335,000 |  |
Agency Business | SFR - Fixed Rate | Bridge Loans |  |  |
Segment Information |  |  |
Total loan commitment | 389,200,000 |  |
Agency Business | Fannie Mae |  |  |
Segment Information |  |  |
Origination Volumes | 3,389,312,000 | 5,041,925,000 | 3,346,272,000
Loan Sales Data: |  |  |
Loan Sales | 3,675,763,000 | 4,771,113,000 | 3,296,523,000
Agency Business | Private Label |  |  |
Segment Information |  |  |
Origination Volumes | 1,016,142,000 | 960,508,000 | 728,317,000
Loan Sales Data: |  |  |
Loan Sales | 985,094,000 | 727,154,000 |
Agency Business | Freddie Mac |  |  |
Segment Information |  |  |
Origination Volumes | 1,436,853,000 | 382,191,000 | 401,216,000
Loan Sales Data: |  |  |
Loan Sales | 1,081,702,000 | 816,802,000 | 786,993,000
Agency Business | FHA |  |  |
Segment Information |  |  |
Origination Volumes | 430,320,000 | 327,345,000 | 123,095,000
Loan Sales Data: |  |  |
Loan Sales | $ 480,275,000 | $ 272,659,000 | 106,271,000
Agency Business | CMBS/Conduit |  |  |
Segment Information |  |  |
Origination Volumes |  |  | 211,325,000
Loan Sales Data: |  |  |
Loan Sales |  |  | $ 211,325,000

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | abr_ContractualObligations
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Funded and unfunded amount, before allowance for credit loss, of financing receivable. + References No definition available. + Details
Name: | abr_FinancingReceivableBeforeAllowanceForCreditLossFundedAndUnfunded
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

X
- Definition Amount of loans originated through loan payoffs and paydowns. + References No definition available. + Details
Name: | abr_LoansPayoffsAndPaydowns
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of new loans originated during the period + References No definition available. + Details
Name: | abr_NewLoansOriginated
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the number of loans related to the real estate property under the loan portfolio. + References No definition available. + Details
Name: | abr_NumberOfLoansUnderSpecifiedLoanPortfolio
Namespace Prefix: | abr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Originated mortgage servicing rights rate, MSR income as a percent of loan commitments. + References No definition available. + Details
Name: | abr_OriginatedMortgageServicingRightsRate
Namespace Prefix: | abr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale margin as a percent of loan sales. + References No definition available. + Details
Name: | abr_SaleMarginOfMortgageLoanSold
Namespace Prefix: | abr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3461-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=abr_SingleFamilyRentalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=abr_FederalNationalMortgageAssociationLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=abr_PrivateLabelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=abr_FederalHomeLoanMortgageCorporationLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=abr_FederalHousingAdministrationLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=abr_CommercialMortgageBackedSecurityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |