Investment And Revenue From External Customers By Geographic Area [Line Items]

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.18)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 12
-Article 7

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Real Estate and Loans Receivable - Schedule of Investments and Revenue from External Customers by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets	$ 5,609,351				$ 3,720,330				$ 5,609,351	$ 3,720,330
Revenue	131,546	$ 114,570	$ 99,801	$ 95,961	82,106	$ 80,777	$ 76,560	$ 73,089	441,878	312,532	$ 242,523
Assets, Total [Member] \| Texas [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets	917,314				776,017				$ 917,314	$ 776,017
Assets									16.40%	20.90%
Assets, Total [Member] \| California [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets	547,085				547,098				$ 547,085	$ 547,098
Assets									9.80%	14.70%
Assets, Total [Member] \| Germany [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets	978,529				707,437				$ 978,529	$ 707,437
Assets									17.40%	19.00%
Assets, Total [Member] \| Italy Spain and United Kingdom [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets	$ 152,661								$ 152,661
Assets									2.70%
Assets, Total [Member] \| United Kingdom [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Total Assets					$ 44,005					$ 44,005
Assets										1.20%
Revenue [Member] \| Texas [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Revenue									$ 87,541	$ 74,044
Assets									19.80%	23.70%
Revenue [Member] \| California [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Revenue									$ 66,120	$ 64,268
Assets									15.00%	20.50%
Revenue [Member] \| Germany [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Revenue									$ 78,540	$ 23,663
Assets									17.80%	7.60%
Revenue [Member] \| Italy Spain and United Kingdom [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Revenue									$ 4,476
Assets									1.00%
Revenue [Member] \| United Kingdom [Member] \| Credit Concentration Risk [Member]
Investment And Revenue From External Customers By Geographic Area [Line Items]
Revenue										$ 2,322
Assets										0.70%