Capitalized internal leasing costs.

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Leases future minimum payments due.

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- Definition

Limited partnership to common stock conversion ratio.

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Organization consolidation and presentation of financial statements.

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Properties owned percentage.

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Remaining funds rate of distribution to all partners.

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Remaining funds rate of distribution to partnership.

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- Definition

The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

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The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The number of real estate properties owned as of the balance sheet date.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	9 Months Ended		12 Months Ended
	Sep. 30, 2018 USD ($) property segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Limited partnership to common stock conversion ratio	100.00%
Number of retail properties \| property	170
Number of reportable segments \| segment	3
Net cash provided by (used in) investing activities	$ (76,318,000)	$ (152,623,000)
Net cash provided by (used in) operating activities	67,183,000	87,189,000
Net cash (used in) provided by financing activities	(54,501,000)	38,453,000
Capitalized acquisition costs	200,000
Acquisition costs expensed		900,000
Capitalized internal leasing costs	1,400,000		$ 1,300,000
Leases, future payment obligations	$ 204,000,000
Accounting Standards Update 2014-09
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cumulative effect of new accounting principle during period			$ 0
Accounting Standards Update 2016-15
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net cash provided by (used in) investing activities		6,300,000
Net cash provided by (used in) operating activities		6,300,000
Accounting Standards Update 2016-18
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net cash provided by (used in) operating activities		3,500,000
Net cash (used in) provided by financing activities		100,000
Core Portfolio
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of retail properties \| property	118
Properties owned percentage	100.00%
Acquisition costs expensed		$ 300,000
Opportunity Funds
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of retail properties \| property	52
Operating Partnership, as General Partner or Managing Member
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity interest held by Operating Partnership	94.00%		95.00%
Remaining funds rate of distribution to operating partnership (in percent)	20.00%
Institutional Investors
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining funds rate of distribution to all partners (in percent)	80.00%