Acquisitions - Schedule of Acquisition Cost of Shopping Centers (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2014
Business Acquisition [Line Items]
Less: Mortgage debt assumed at fair value	$ (50,752)
Shopping Centers Acquired [Member]
Business Acquisition [Line Items]
Land	52,313
Buildings	110,062
Tenant improvements	2,898
Construction in progress	76,213
Other assets	362
Assets acquired	266,340
Less: Mortgage debt assumed at fair value	(50,752)
Less: Below-market leases	(17,591)
Net assets acquired	197,997
In-Place Leases, Including Lease Origination Costs and Fair Market Value of Leases [Member] \| Shopping Centers Acquired [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period	7 years 7 months 6 days
Intangible assets acquired	16,192
Tenant Relations [Member] \| Shopping Centers Acquired [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period	9 years 10 months 24 days
Intangible assets acquired	$ 8,300
Below-Market Leases [Member] \| Shopping Centers Acquired [Member]
Business Acquisition [Line Items]
Weighted Average Amortization Period	19 years 2 months 12 days

Amount of tenant improvements acquired as part of a real property acquisition with a finite life.

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Amount of construction in progress acquired as part of a real property acquisition at the acquisition date.

+ References

No definition available.

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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

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- Definition

Amount of acquired 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

Amount of assets acquired at the acquisition date.

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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.

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- Definition

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

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

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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.

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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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- Definition

The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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