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Financing Arrangement - Narrative (Details) ft² in Thousands, $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Jun. 27, 2019 USD ($) | Sep. 30, 2009 ft² | Sep. 30, 2019 USD ($) $ / ft² | Sep. 30, 2018 USD ($) | Dec. 31, 2018 $ / ft²
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Terminal capitalization rate |  |  | 5.00% |  | 4.80%
Discount rate |  |  | 6.00% |  | 5.80%
Distributions, pro rata share of the excess loan proceeds | $ | $ 27,945 |  | $ 27,945 | $ 0 |
Chandler Fashion Center |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Additional borrowing | $ | $ 256,000 |  |  |  |
Financing Arrangement | Minimum |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Market rent per square foot | $ / ft² |  |  | 35 |  | 35
Financing Arrangement | Maximum |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Market rent per square foot | $ / ft² |  |  | 115 |  | 115
Financing Arrangement | Chandler Freehold |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Percentage of loan assumed by third party |  | 49.90% |  |  |
Financing Arrangement | Chandler Fashion Center |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Property area (in square feet) | ft² |  | 1,318 |  |  |
Financing Arrangement | Freehold Raceway Mall |  |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |  |
Property area (in square feet) | ft² |  | 1,673 |  |  |

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- Definition Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column F -Subsection 29 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column F)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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