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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions | 6 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) segment property | Dec. 31, 2016 | Jun. 30, 2016 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of reportable segments | segment | 3 |  |
Capitalized internal leasing costs | $ | $ 0.5 |  | $ 0.7
Operating Partnership, as General Partner or Managing Member |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Equity interest held by Operating Partnership | 95.00% | 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% |  |
Core Portfolio |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of retail properties | 118 |  |
Properties owned percentage | 100.00% |  |
Opportunity Funds |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of retail properties | 65 |  |
Core Portfolio and Opportunity Funds |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of retail properties | 183 |  |

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- Definition For an unclassified balance sheet, this element represents costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. This amount is before considering accumulated amortization representing the periodic charge to earnings to recognize the deferred costs over the term of the related lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=77902619&loc=d3e40588-112709 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=77902619&loc=d3e40246-112709 + Details
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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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