XML 64 R55.htm IDEA: XBRL DOCUMENT v3.23.1

Investments in Equity Affiliates (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investment in Equity Affiliates
Investment in Equity Affiliates	$ 77,641	$ 79,130
UPB of Loans to Equity Affiliates	1,688
Arbor Residential Investor LLC
Investment in Equity Affiliates
Investment in Equity Affiliates	46,141	46,951
AMAC III
Investment in Equity Affiliates
Investment in Equity Affiliates	14,791	15,825
Fifth Wall
Investment in Equity Affiliates
Investment in Equity Affiliates	13,939	13,584
Lightstone Value Plus REIT L.P.
Investment in Equity Affiliates
Investment in Equity Affiliates	1,895	1,895
Docsumo Pte. Ltd.
Investment in Equity Affiliates
Investment in Equity Affiliates	450	450
JT Prime
Investment in Equity Affiliates
Investment in Equity Affiliates	425	$ 425
West Shore Cafe
Investment in Equity Affiliates
UPB of Loans to Equity Affiliates	$ 1,688

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(18))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ 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_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: