Mortgage loans on real estate, interest rate, description of variable rate basis.

No definition available.

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- 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.

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- Definition

Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

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- Definition

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(c))

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

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- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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Loans Receivable - Summary of Trust's Loans Receivable (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	$ 8,386	$ 24,005	$ 62,314	$ 101,100
Rockwell [Member] \| Mezzanine [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans, Stated Interest Rate, Variable Rate Basis	12.0
Interest rate on mortgage loans	12.00%
Contractual Maturity Date	May 01, 2016
Churchill [Member] \| Whole Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans, Stated Interest Rate, Variable Rate Basis	LIBOR + 3.75%
Interest rate on mortgage loans	3.75%
Contractual Maturity Date	Aug. 01, 2016
Popiu Shopping Village [Member] \| B Note [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans, Stated Interest Rate, Variable Rate Basis	6.62
Interest rate on mortgage loans	6.62%
Loans receivable, net	$ 2,778	2,804
Contractual Maturity Date	Jan. 06, 2017
Edens Center and Norridge Commons [Member] \| Mezzanine [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans, Stated Interest Rate, Variable Rate Basis	LIBOR + 12%
Interest rate on mortgage loans	12.00%
Loans receivable, net	$ 3,098	18,690
Contractual Maturity Date	Mar. 09, 2017
Mentor Building [Member] \| Whole Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans, Stated Interest Rate, Variable Rate Basis	10.0
Interest rate on mortgage loans	10.00%
Loans receivable, net	$ 2,510	$ 2,511
Contractual Maturity Date	Sep. 10, 2017