Real Estate Investments - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - Stone House Square And Mary Land And Perry Hall Market Place [Member] $ in Thousands	Jun. 30, 2015 USD ($)
Real Estate Properties [Line Items]
Land	$ 9,600
Site improvements	2,290
Building and improvements	22,376
In-place leases	6,810
Above-market leases	1,710
Below-market leases	(2,980)
Net assets acquired	$ 39,806

Business acquisition above market lease.

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- Definition

Business acquisition below market lease.

+ References

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- Definition

Business combination, recognized identifiable assets acquired and liabilities assumed site improvements.

+ References

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- Definition

Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

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Amount of real estate acquired, at the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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