XML 65 R59.htm IDEA: XBRL DOCUMENT v3.25.2

Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - CECL Allowance as Percentage of Amortized Cost and Total Commitment (Parenthetical) (Details) - Commercial Mortgage and Subordinated Portfolio Segment - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
General CECL allowance increased	$ 3.1	$ 4.0	$ 2.8	$ 5.7
Specific CECL allowance increased			$ 7.5
Aggregate specific CECL allowance				268.0
Junior Mezzanine A Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Specific CECL allowance increased				$ 142.0

X

- Definition

Aggregate specific allowance credit loss.

+ References

No definition available.

+ Details

Name:	ari_AggregateSpecificAllowanceCreditLoss
Namespace Prefix:	ari_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

General allowance for credit loss increase decrease.

+ References

No definition available.

+ Details

Name:	ari_GeneralAllowanceForCreditLossIncreaseDecrease
Namespace Prefix:	ari_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Specific allowance for credit loss increase decrease.

+ References

No definition available.

+ Details

Name:	ari_SpecificAllowanceForCreditLossIncreaseDecrease
Namespace Prefix:	ari_
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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=ari_CommercialMortgageandSubordinatedPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ari_JuniorMezzanineALoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: