XML 70 R61.htm IDEA: XBRL DOCUMENT
v3.23.3

Debt Obligations - Collateralized Loan Obligations (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) loan | Jun. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2023 USD ($) loan | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Debt Obligations |  |  |  |  |  |  |
Debt, Carrying Value | $ 7,004,634 |  |  |  | $ 7,004,634 |  | $ 7,849,270
Debt, Wtd. Avg. Rate | 7.59% |  |  |  | 7.59% |  |
Payoffs and paydowns of collateralized loan obligations |  |  |  |  | $ 856,864 | $ 441,000 |
Loss on extinguishment of debt | $ 314 |  | $ 3,262 |  | 1,561 | $ 4,612 |
Collateralized loan obligations |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 6,807,136 |  |  |  | 6,807,136 |  | 7,649,188
Debt, Carrying Value | $ 6,784,544 |  |  |  | $ 6,784,544 |  | $ 7,615,364
Debt, Wtd. Avg. Rate | 7.08% |  |  |  | 7.08% |  | 6.10%
Collateral, Loans, UPB | $ 7,695,762 |  |  |  | $ 7,695,762 |  | $ 8,619,210
Collateral, Loans, Carrying Value | 7,673,865 |  |  |  | 7,673,865 |  | 8,586,139
Collateral, Cash, Restricted Cash | 299,784 |  |  |  | 299,784 |  | 480,817
Deferred financing fees | $ 24,600 |  |  |  | $ 24,600 |  | 36,800
Number of loans under the loan portfolio | loan | 4 |  |  |  | 4 |  |
Collateral at risk | $ 89,800 |  |  |  | $ 89,800 |  | 0
Proceeds from issuance of collateralized loan obligations for acquiring additional loan obligations |  |  |  |  | 108,500 |  | 230,000
Loss on extinguishment of debt |  |  |  | $ 1,400 |  |  |
CLO 19 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 872,812 |  |  |  | 872,812 |  | 872,812
Debt, Carrying Value | $ 867,904 |  |  |  | $ 867,904 |  | $ 866,605
Debt, Wtd. Avg. Rate | 7.77% |  |  |  | 7.77% |  | 6.75%
Collateral, Loans, UPB | $ 1,014,554 |  |  |  | $ 1,014,554 |  | $ 952,268
Collateral, Loans, Carrying Value | 1,010,753 |  |  |  | 1,010,753 |  | 947,336
Collateral, Cash, Restricted Cash | 4,527 |  |  |  | 4,527 |  | 64,300
CLO 18 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 1,652,812 |  |  |  | 1,652,812 |  | 1,652,812
Debt, Carrying Value | $ 1,647,326 |  |  |  | $ 1,647,326 |  | $ 1,645,711
Debt, Wtd. Avg. Rate | 7.22% |  |  |  | 7.22% |  | 6.19%
Collateral, Loans, UPB | $ 1,908,793 |  |  |  | $ 1,908,793 |  | $ 1,899,174
Collateral, Loans, Carrying Value | 1,903,837 |  |  |  | 1,903,837 |  | 1,891,215
Collateral, Cash, Restricted Cash | 20,983 |  |  |  | 20,983 |  | 85,970
CLO 17 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 1,714,125 |  |  |  | 1,714,125 |  | 1,714,125
Debt, Carrying Value | $ 1,709,255 |  |  |  | $ 1,709,255 |  | $ 1,707,676
Debt, Wtd. Avg. Rate | 7.10% |  |  |  | 7.10% |  | 6.16%
Collateral, Loans, UPB | $ 1,901,897 |  |  |  | $ 1,901,897 |  | $ 1,911,866
Collateral, Loans, Carrying Value | 1,896,347 |  |  |  | 1,896,347 |  | 1,904,732
Collateral, Cash, Restricted Cash | 149,206 |  |  |  | 149,206 |  | 145,726
CLO 16 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 1,237,500 |  |  |  | 1,237,500 |  | 1,237,500
Debt, Carrying Value | $ 1,233,286 |  |  |  | $ 1,233,286 |  | $ 1,231,887
Debt, Wtd. Avg. Rate | 6.73% |  |  |  | 6.73% |  | 5.79%
Collateral, Loans, UPB | $ 1,343,886 |  |  |  | $ 1,343,886 |  | $ 1,307,244
Collateral, Loans, Carrying Value | 1,340,303 |  |  |  | 1,340,303 |  | 1,301,794
Collateral, Cash, Restricted Cash | 91,434 |  |  |  | 91,434 |  | 106,495
CLO 15 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 674,412 |  |  |  | 674,412 |  | 674,412
Debt, Carrying Value | $ 672,897 |  |  |  | $ 672,897 |  | $ 671,532
Debt, Wtd. Avg. Rate | 6.78% |  |  |  | 6.78% |  | 5.84%
Collateral, Loans, UPB | $ 770,602 |  |  |  | $ 770,602 |  | $ 797,755
Collateral, Loans, Carrying Value | 768,436 |  |  |  | 768,436 |  | 795,078
Collateral, Cash, Restricted Cash | 19,714 |  |  |  | 19,714 |  | 2,861
CLO 14 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 655,475 |  |  |  | 655,475 |  | 655,475
Debt, Carrying Value | $ 653,876 |  |  |  | $ 653,876 |  | $ 652,617
Debt, Wtd. Avg. Rate | 6.74% |  |  |  | 6.74% |  | 5.80%
Collateral, Loans, UPB | $ 756,030 |  |  |  | $ 756,030 |  | $ 732,247
Collateral, Loans, Carrying Value | 754,189 |  |  |  | 754,189 |  | 730,057
Collateral, Cash, Restricted Cash | 13,920 |  |  |  | 13,920 |  | 37,090
CLO 13 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value |  |  |  |  |  |  | 462,769
Debt, Carrying Value |  |  |  |  |  |  | $ 461,005
Debt, Wtd. Avg. Rate |  |  |  |  |  |  | 6.03%
Collateral, Loans, UPB |  |  |  |  |  |  | $ 552,182
Collateral, Loans, Carrying Value |  |  |  |  |  |  | 550,924
Collateral, Cash, Restricted Cash |  |  |  |  |  |  | 37,875
Payoffs and paydowns of collateralized loan obligations |  | $ 1,200 |  |  |  |  |
CLO 12 |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value |  |  |  |  |  |  | 379,283
Debt, Carrying Value |  |  |  |  |  |  | $ 378,331
Debt, Wtd. Avg. Rate |  |  |  |  |  |  | 6.09%
Collateral, Loans, UPB |  |  |  |  |  |  | $ 466,474
Collateral, Loans, Carrying Value |  |  |  |  |  |  | 465,003
Collateral, Cash, Restricted Cash |  |  |  |  |  |  | 500
Payoffs and paydowns of collateralized loan obligations | 300 |  |  |  |  |  |
Q Series securitization |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 222,066 |  |  |  | 222,066 |  | 236,878
Debt, Carrying Value | $ 220,090 |  |  |  | $ 220,090 |  | $ 233,906
Debt, Wtd. Avg. Rate | 7.31% |  |  |  | 7.31% |  | 6.30%
Collateral, Loans, UPB | $ 296,088 |  |  |  | $ 296,088 |  | $ 315,837
Collateral, Loans, Carrying Value | 294,876 |  |  |  | 294,876 |  | 313,965
Collateral, Cash, Restricted Cash | 0 |  |  |  | 0 |  | 0
Total securitized debt |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |
Debt, Face Value | 7,029,202 |  |  |  | 7,029,202 |  | 7,886,066
Debt, Carrying Value | $ 7,004,634 |  |  |  | $ 7,004,634 |  | $ 7,849,270
Debt, Wtd. Avg. Rate | 7.09% |  |  |  | 7.09% |  | 6.11%
Collateral, Loans, UPB | $ 7,991,850 |  |  |  | $ 7,991,850 |  | $ 8,935,047
Collateral, Loans, Carrying Value | 7,968,741 |  |  |  | 7,968,741 |  | 8,900,104
Collateral, Cash, Restricted Cash | $ 299,784 |  |  |  | $ 299,784 |  | $ 480,817
Weighted average note rate including certain fees and costs, percentage | 7.34% |  |  |  | 7.34% |  | 6.32%

X
- Definition Represents the face value of collateral in default, as defined by the CDO indenture, as well as assets deemed to be a credit risk. Credit risk assets are reported by each of the CDOs and are generally defined as the one that, in the CDO collateral manager's reasonable business judgment, has a significant risk of declining in credit quality or, with a passage of time, becoming a defaulted asset. + References No definition available. + Details
Name: | abr_CollateralizedLoanObligationCollateralAtRisk
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding, including certain fees and costs. + References No definition available. + Details
Name: | abr_DebtWeightedAverageInterestRateIncludingFeesAndCosts
Namespace Prefix: | abr_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the carrying value of the mortgage loans that serve as collateral. + References No definition available. + Details
Name: | abr_MortgageLoansOnRealEstateCarryingValue
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the unpaid principal balance of the mortgage loans that serve as collateral. + References No definition available. + Details
Name: | abr_MortgageLoansOnRealEstatePrincipalAmountOfMortgages
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The cash inflow from amounts received from issuance of collateralized loan obligations for the purpose of acquiring additional loan obligations. + References No definition available. + Details
Name: | abr_ProceedsFromIssuanceOfCollateralizedLoanObligationsForAcquiringAdditionalLoan
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow to repay the long term loans which are wholly or partially secured by collateral. + References No definition available. + Details
Name: | abr_RepaymentOfSecuredLoanObligations
Namespace Prefix: | abr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
Name: | us-gaap_CashCollateralForBorrowedSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482900/835-30-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-2 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482949/835-30-55-8 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482900/835-30-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69E -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69E Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69F -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69F Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 11: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1I -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481303/470-50-40-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481303/470-50-40-4 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=us-gaap_CollateralizedLoanObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsFifteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsFourteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsThirteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralizedLoanObligationsTwelveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_QSeriesSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=abr_CollateralSecuritizeDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |