Property Acquisitions - Schedule of Amortization for Acquired Intangible Assets (Detail) (USD $)	Dec. 31, 2014
Above Market Leases [Member] \| Lessor [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2015	$ 156,000
2016	156,000
2017	142,000
2018	41,000
2019	24,000
Thereafter	32,000
Total	551,000
Below Market Leases [Member] \| Lessor [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2015	1,039,000
2016	1,020,000
2017	956,000
2018	901,000
2019	791,000
Thereafter	2,824,000
Total	7,531,000
Below Market Leases [Member] \| Lessee [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2015	333,000
2016	333,000
2017	320,000
2018	317,000
2019	312,000
Thereafter	1,134,000
Total	2,749,000
In-Place Leases [Member] \| Lessor [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2015	497,000
2016	491,000
2017	477,000
2018	450,000
2019	429,000
Thereafter	2,984,000
Total	$ 5,328,000

Finite lived intangible assets total amortization expenses.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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