XML 34 R44.htm IDEA: XBRL DOCUMENT v2.4.0.8

Commercial Mortgage Loan Portfolio (Parenthetical) (Detail) (Commercial mortgage loans [Member], Condo Conversion [Member])	3 Months Ended
	Mar. 31, 2014 option
Condo Conversion - NY, NY December 2012 [Member]
Mortgage Loans on Real Estate [Line Items]
Number of options to extend loan agreement	2
Option to extend loan agreement, term	1 year
Condo Conversion - NY, NY August 2013 [Member]
Mortgage Loans on Real Estate [Line Items]
Option to extend loan agreement, term	1 year

X

- Definition

Mortgage Loans, Option to Extend Loan Agreement, Term

+ References

No definition available.

+ Details

Name:	ari_MortgageLoansOptiontoExtendLoanAgreementTerm
Namespace Prefix:	ari_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Options to Extend Loan Agreement

+ References

No definition available.

+ Details

Name:	ari_NumberofOptionstoExtendLoanAgreement
Namespace Prefix:	ari_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

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