Mortgage Loans on Real Estate, Funded Amount of Mortgages

No definition available.

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- Definition

Payments to Fund Previously Closed Commercial Real Estate Loans Held-for-sale

+ References

No definition available.

+ Details

Name:	ari_PaymentstoFundPreviouslyClosedCommercialRealEstateLoansHeldforsale
Namespace Prefix:	ari_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Payments to Purchase Commercial Real Estate Loans Held-for-sale

+ References

No definition available.

+ Details

Name:	ari_PaymentstoPurchaseCommercialRealEstateLoansHeldforsale
Namespace Prefix:	ari_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from collection of repayments from borrowers on loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3461-108585

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Subsequent Events (Details) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Feb. 28, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Funding of commercial mortgage loans		$ 843,791	$ 637,582	$ 403,983
Principal payments received on commercial mortgage loans		$ 210,383	$ 105,618	$ 105,501
Subsequent Event
Subsequent Event [Line Items]
Funded amount of mortgages	$ 193,500
Funding of commercial mortgage loans	190,300
Payments to fund previously closed commercial mortgage loans	67,700
Principal payments received on commercial mortgage loans	$ 41,500