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Investment in Real Estate - Summary of Intangible Assets (Liabilities) Subject to Amortization in Period of Acquisition (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
In-Place Leases [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired finite lived intangible asset, fair value | $ 2,807 | $ 1,750
Acquired finite lived intangible asset, weighted average life | 52 months | 118 months
Tenant Relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired finite lived intangible asset, fair value | 1,914 | 1,012
Acquired finite lived intangible asset, weighted average life | 112 months | 178 months
Below Market Lease [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired finite lived intangible asset, fair value | $ (188) | $ (102)
Acquired finite lived intangible asset, weighted average life | 52 months | 118 months

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + Details
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