XML 72 R61.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - CECL Allowance as Percentage of Amortized Cost and Total Commitment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Allowance and Provision for Loan Credit Loss [Abstract] |  |  |  |
Beginning balance, specific CECL allowance, funded | $ 26,482 | $ 26,482 |  |
Write-offs, specific CECL allowance, funded |  | (127,512) | $ (81,890) |
Ending balance, specific CECL allowance, funded |  | 30,836 | 26,482 |
Financing Receivable, Funded, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance, General CECL allowance, funded | 26,482 | 26,482 | 26,224 |
Allowances (Reversals), net |  | 4,354 | 258 |
Quarter writeoff, General CECL allowance, funded |  | 0 | 0 |
Ending balance, General CECL allowance, funded |  | 30,836 | 26,482 | $ 26,224
Financing Receivable, Unfunded, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance, General CECL allowance, unfunded | 4,017 | 4,017 | 4,347 |
Allowances (Reversals), net |  | 1,931 | (330) |
Quarter writeoff, General CECL allowance, unfunded |  | 0 | 0 |
Ending balance, General CECL allowance, unfunded |  | 5,948 | 4,017 | 4,347
Financing Receivable, General Allowance, Allowance for Credit Loss [Roll Forward] |  |  |  |
General CECL Allowance | 30,499 | 30,499 | 30,571 |
Allowances (Reversals), net |  | 6,285 | (72) |
General CECL Allowance writeoff |  | 0 | 0 |
General CECL Allowance |  | 36,784 | 30,499 | 30,571
Financing Receivable, Total Allowance for Credit Loss [Roll Forward] |  |  |  |
Total CECL Allowance | 223,499 | 223,499 | 164,071 |
Allowances (Reversals), net |  | 283,297 | 141,408 |
Total CECL Allowance, writeoff |  | (127,512) | (81,980) |
Total CECL Allowance |  | $ 379,284 | $ 223,499 | $ 164,071
General CECL allowance, % of amortized cost |  | 0.52% | 0.38% | 0.36%
Total CECL allowance, % of amortized cost |  | 5.07% | 2.61% | 1.86%
Commercial Mortgage and Subordinated Portfolio Segment |  |  |  |
Allowance and Provision for Loan Credit Loss [Abstract] |  |  |  |
Beginning balance, specific CECL allowance, funded | 193,000 | $ 193,000 | $ 133,500 |
Allowances (Reversals), net | $ 142,000 | 277,012 | 141,480 |
Write-offs, specific CECL allowance, funded |  | (127,512) | (81,980) | $ (24,900)
Ending balance, specific CECL allowance, funded |  | $ 342,500 | $ 193,000 | $ 133,500

X
- Definition Allowance for credit loss as percent of amortized cost. + References No definition available. + Details
Name: | ari_AllowanceForCreditLossAsPercentOfAmortizedCost
Namespace Prefix: | ari_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Financing receivable allowance for credit loss expense reversal. + References No definition available. + Details
Name: | ari_FinancingReceivableAllowanceForCreditLossExpenseReversal
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable allowance for credit loss funded and unfunded. + References No definition available. + Details
Name: | ari_FinancingReceivableAllowanceForCreditLossFundedAndUnfunded
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financing receivable allowance for credit loss write off. + References No definition available. + Details
Name: | ari_FinancingReceivableAllowanceForCreditLossWriteOff
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable current expected credit loss allowance. + References No definition available. + Details
Name: | ari_FinancingReceivableCurrentExpectedCreditLossAllowance
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financing Receivable, Funded, Allowance for Credit Loss + References No definition available. + Details
Name: | ari_FinancingReceivableFundedAllowanceforCreditLoss
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financing Receivable, Funded, Allowance for Credit Loss [Roll Forward] + References No definition available. + Details
Name: | ari_FinancingReceivableFundedAllowanceforCreditLossRollForward
Namespace Prefix: | ari_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing receivable funded and unfunded credit loss expense reversal. + References No definition available. + Details
Name: | ari_FinancingReceivableFundedAndUnfundedCreditLossExpenseReversal
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable funded and unfunded credit loss write off. + References No definition available. + Details
Name: | ari_FinancingReceivableFundedAndUnfundedCreditLossWriteOff
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Receivable, Funded, Credit Loss, Expense (Reversal) + References No definition available. + Details
Name: | ari_FinancingReceivableFundedCreditLossExpenseReversal
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable funded credit loss write off + References No definition available. + Details
Name: | ari_FinancingReceivableFundedCreditLossWriteOff
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Receivable, General Allowance, Allowance for Credit Loss [Roll Forward] + References No definition available. + Details
Name: | ari_FinancingReceivableGeneralAllowanceAllowanceforCreditLossRollForward
Namespace Prefix: | ari_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing Receivable, Total Allowance for Credit Loss [Roll Forward] + References No definition available. + Details
Name: | ari_FinancingReceivableTotalAllowanceforCreditLossRollForward
Namespace Prefix: | ari_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing receivable unfunded allowance for credit loss. + References No definition available. + Details
Name: | ari_FinancingReceivableUnfundedAllowanceForCreditLoss
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financing Receivable, Unfunded, Allowance for Credit Loss [Roll Forward] + References No definition available. + Details
Name: | ari_FinancingReceivableUnfundedAllowanceforCreditLossRollForward
Namespace Prefix: | ari_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing receivable unfunded credit loss expense reversal. + References No definition available. + Details
Name: | ari_FinancingReceivableUnfundedCreditLossExpenseReversal
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable unfunded credit loss write off. + References No definition available. + Details
Name: | ari_FinancingReceivableUnfundedCreditLossWriteOff
Namespace Prefix: | ari_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition General allowance for credit loss as percent of amortized cost. + References No definition available. + Details
Name: | ari_GeneralAllowanceForCreditLossAsPercentOfAmortizedCost
Namespace Prefix: | ari_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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