Acquisitions - Schedule of Acquisition Cost of Shopping Centers (Detail) - Shopping Center Acquired [Member] $ in Thousands	9 Months Ended
Sep. 30, 2016 USD ($)
Business Acquisition [Line Items]
Land	$ 27,093
Buildings	99,034
Tenant improvements	4,385
Other assets	146
Assets acquired	153,489
Less: Below-market leases	(6,967)
Less: Other liabilities assumed	(547)
Net assets acquired	145,975
In-Place Leases (Including Lease Origination Costs and Fair Market Value of Leases) [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 14,021
Weighted-Average Amortization Period	5 years 1 month 6 days
Tenant Relations [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 8,810
Weighted-Average Amortization Period	11 years 1 month 6 days
Below-Market Leases [Member]
Business Acquisition [Line Items]
Weighted-Average Amortization Period	15 years 4 months 24 days

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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)
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- Definition

Amount after amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Amount of assets 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
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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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

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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- Definition

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.

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- Definition

Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

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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