XML 57 R51.htm IDEA: XBRL DOCUMENT
v3.24.3

Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Activity Relating to Loan Portfolio (Parenthetical) (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2024 | Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Credit loss allowance liability on unfunded commitments |  | $ 3.9
Hotel - Honolulu, Hi |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Realized loss from sale of mortgage loan receivable | $ 0.7 |
Massachusetts Healthcare |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Realized loss from sale of mortgage loan receivable |  | 127.5
Loans and leases receivable of written off |  | 136.6
Loans and leases receivable of interest received and unamortized origination fees |  | $ 9.1

X
- Definition Credit loss allowance liability on unfunded commitments. + References No definition available. + Details
Name: | ari_CreditLossAllowanceLiabilityOnUnfundedCommitments
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loans and leases receivable of interest received and unamortized origination fees. + References No definition available. + Details
Name: | ari_LoansAndLeasesReceivableOfInterestReceivedAndUnamortizedOriginationFees
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Loans and leases receivable of written off. + References No definition available. + Details
Name: | ari_LoansAndLeasesReceivableOfWrittenOff
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/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reflects the net positive or negative amount derived from subtracting from net proceeds of sale and the carrying amounts, net of allocated reserves, of financial assets transferred to third parties in transactions that qualify for sales treatment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-5 + Details
Name: | us-gaap_LoansAndLeasesReceivableGainLossOnSalesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ari_HotelHonoluluHiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ari_MassachusettsHealthcareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |