Debt Related To Real Estate Owned, Held For Investment

No definition available.

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Namespace Prefix:	ari_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Real Estate Investment, Measurement Input

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

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+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

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+ Details

Name:	us-gaap_RealEstateInvestmentPropertyNet
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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+ Details

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Fair Value Disclosure - Narrative (Details)			9 Months Ended		12 Months Ended
Fair Value Disclosure - Narrative (Details)	Mar. 31, 2023 USD ($) ft²	May 24, 2021 USD ($)	Sep. 30, 2023 USD ($) instrument	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) instrument	Aug. 03, 2022 USD ($)	Dec. 31, 2017 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Impairment of real estate			$ 0		$ 0
Debt related to real estate owned, held for investment, net			161,245,000		160,294,000
Assumption of real estate		$ 154,300,000	75,000,000	$ 270,035,000
Hotel Property Through a deed-in-Lieu of Foreclosure
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Real estate investment property, net	$ 75,000,000
Impairment of real estate	$ 0
Hotel Property Through a deed-in-Lieu of Foreclosure \| Discount Rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Real estate investment, measurement input \| ft²	0.105
Hotel Property Through a deed-in-Lieu of Foreclosure \| Measurement Input, Cap Rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Real estate investment, measurement input \| ft²	0.095
Deed-In-Lieu Of Foreclosure
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Real estate investment property, net						$ 270,100,000
Impairment of real estate			$ 0		$ 0
Hotel - Washington D.C. \| Subordinate Mortgage Portfolio Segment
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Debt related to real estate owned, held for investment, net		$ 110,000,000					$ 110,000,000
Interest rate cap \| Term Loan
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of Contracts \| instrument					1
Interest rate cap \| Construction Financing
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of Contracts \| instrument			1