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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) segment property | Sep. 30, 2016 USD ($) | Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of reportable segments | segment | 3 |  |
Lease future payment obligation | $ 207,684 |  |
Capitalized internal leasing costs | 800 | $ 800 |
Acquisition related costs | $ 900 | 5,500 |
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 | property | 118 |  |
Properties owned percentage | 100.00% |  |
Acquisition related costs | $ 300 | 5,100 |
Opportunity Funds |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of retail properties | property | 64 |  |
Core Portfolio and Opportunity Funds |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of retail properties | property | 182 |  |
Acquisition related costs | $ 900 | $ 5,500 |

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- Definition Remaining Funds Rate of Distribution to Partnership + References No definition available. + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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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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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
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