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Repurchase Agreement (Detail) (USD $) In Thousands, unless otherwise specified		1 Months Ended	12 Months Ended	9 Months Ended
	Sep. 30, 2014	Jan. 31, 2013 CDO Bond [Member]	Dec. 31, 2011 CDO Bond [Member] Security	Sep. 30, 2014 Repurchase Facility [Member] extension	Dec. 31, 2011 Repurchase Facility [Member]
Line of Credit Facility [Line Items]
Line of credit, amount outstanding	$ 537,766				$ 47,439
Investment, face amount			$ 68,726
Advance rate on face amount			69.00%
Number of senior and subordinate commercial real estate debt positions and commercial real estate securities included in CDO			58
Interest rate for repurchase facility				13.00%
Current pay interest rate				10.00%
Accrual interest rate				3.00%
Expiration period				18 months
Number of extensions				3
Option to extend, term				6 months
Internal rate of return		17.00%

X

- Definition

Investment, Advance Rate

+ References

No definition available.

+ Details

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X

- Definition

Investment, Face Amount

+ References

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X

- Definition

Investment, Internal Rate of Return

+ References

No definition available.

+ Details

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X

- Definition

Line of Credit Facility, Interest Rate, Accrual Rate

+ References

No definition available.

+ Details

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X

- Definition

Line of Credit Facility, Interest Rate, Current Rate

+ References

No definition available.

+ Details

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X

- Definition

Line of Credit Facility, Interest Rate, Stated Percentage

+ References

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+ Details

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X

- Definition

Line of Credit Facility, Option to Extend, Term

+ References

No definition available.

+ Details

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X

- Definition

Line of Credit, Number of Extensions

+ References

No definition available.

+ Details

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X

- Definition

Number of Debt Positions in Asset Pool

+ References

No definition available.

+ Details

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X

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Balance Type:	credit
Period Type:	instant

X

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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