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Subordinate Loans - Additional Information (Detail) (Subordinate Loans [Member], USD $)	12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2013 Retail [Member]	Dec. 31, 2013 Retail [Member]	Oct. 31, 2013 Hotel [Member]	Jun. 30, 2013 Hotel [Member]	Jun. 30, 2012 Ski Resort - California [Member] Ski Resort [Member]	Dec. 31, 2013 Ski Resort - California [Member] Ski Resort [Member]		Dec. 31, 2012 Ski Resort - California [Member] Ski Resort [Member]
Mortgage Loans on Real Estate [Line Items]
Proceeds from Collection of Loans Receivable			$ 50,000,000	$ 25,000,000	$ 25,000,000	$ 15,000,000
Loan closed/ First mortgage	495,319,000	245,875,000					40,000,000	40,000,000		40,000,000
Amendment fee							0.50%
Exit fee							1.00%
Interest rate on the mezzanine loan minimum							0.75%
Coupon rate of loan	11.60%	12.46%					14.00%	14.00%	[1]
Proceeds from Collection of Loans Receivable, Yield Maintenance Payment			$ 2,500,000			$ 1,233,000
Mortgage Loans on Real Estate, Internal Rate of Return			15.00%	15.00%	12.00%	19.00%
[1] Subject to prior liens.

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- Definition

Mortgage Loans on Real Estate, Interest Rate Increase (Decrease)

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Mortgage Loans on Real Estate, Internal Rate of Return

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- Definition

Mortgage Loans on Real Estate, Renewed and Extended, Amendment Fee Rate

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Mortgage Loans on Real Estate, Renewed and Extended, Exit Fee Rate

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Proceeds from Collection of Loans Receivable, Yield Maintenance Payment

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- Definition

Amount of the contractual principal due at the origination of the mortgage loan (face amount).

+ 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5



Reference 4: 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 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 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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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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-Article 5



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

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

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- Definition

The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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