Acquired Properties - Summary of Retail Properties Acquired (Details) $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($) Property ft²
Real Estate Properties [Line Items]
Gross Acquisition Price	$ 0	$ 289,900
Capitalized acquisition costs	0	1,168
Assumption of mortgage debt upon acquisition of investment property	$ 0	$ 41,717
Retail
Real Estate Properties [Line Items]
Number of businesses acquired \| Property		3
Gross Acquisition Price		$ 289,900
Number of Units in Real Estate Property \| ft²		655,000
Retail \| Campus Marketplace, San Diego-Carsbad, CA
Real Estate Properties [Line Items]
Gross Acquisition Price		$ 73,350
Number of Units in Real Estate Property \| ft²		144,000
Retail \| Paraiso Parc and Westfork Plaza, Miami-Fort Lauderdale - West Palm Beach, FL
Real Estate Properties [Line Items]
Gross Acquisition Price		$ 163,000
Number of Units in Real Estate Property \| ft²		386,000
Retail \| The Shops at Town Center, Germantown, MD
Real Estate Properties [Line Items]
Gross Acquisition Price		$ 53,550
Number of Units in Real Estate Property \| ft²		125,000

Business Acquisition, Transaction Costs Capitalized During the Period

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB
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The fair value of loans assumed in noncash investing or financing activities.

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- Definition

The number of businesses acquired by the entity during the period.

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The number of units in a real estate property owned as of the balance sheet date.

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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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