The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt Securities - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended						6 Months Ended
	Jun. 30, 2013	Nov. 12, 2014	Nov. 12, 2013	Jun. 30, 2013 Debt Securities [Member]	Dec. 31, 2012 Debt Securities [Member]	Jun. 30, 2013 Debt Securities [Member] AAA-rated CMBS [Member]	Jun. 30, 2013 Debt Securities [Member] CMBS - Hilton (Fair Value Option) [Member]	Dec. 31, 2012 Debt Securities [Member] CMBS - Hilton (Fair Value Option) [Member]
Debt Instrument [Line Items]
Aggregate face value of CMBS				$ 234,660	$ 273,343	$ 163,162	$ 71,498	$ 73,239
Variable rate basis	London InterBank Offered Rate (“LIBOR”)
Interest rate of CMBS	2.30%	3.30%	3.80%
Approximate amortization period							16 years
Percentage of debt yield							5.60%