XML 53 R43.htm IDEA: XBRL DOCUMENT v3.4.0.3

Debt Securities - Overall Statistics for Company's AAA-Rated CMBS Investments Calculated on Weighted Average Basis (Detail) - Commercial Mortgage Backed Securities [Member]	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Coupon	5.90%	5.90%
Yield	6.60%	6.50%
Weighted Average Life	1 year 4 months 24 days	1 year 7 months 6 days

X

- Definition

Available-for-sale Debt Securities, Weighted Average Discount Rate

+ References

No definition available.

+ Details

Name:	ari_AvailableforsaleDebtSecuritiesWeightedAverageDiscountRate
Namespace Prefix:	ari_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Available-for-sale Debt Securities, Weighted Average Expected Term

+ References

No definition available.

+ Details

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

X

- Definition

Available-for-sale Debt Securities, Weighted Average Interest Rate

+ References

No definition available.

+ Details

Name:	ari_AvailableforsaleDebtSecuritiesWeightedAverageInterestRate
Namespace Prefix:	ari_
Data Type:	num:percentItemType
Balance Type:	na
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

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: