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Schedule IV - MORTGAGE NOTES RECEIVABLE ON REAL ESTATE (Details) - USD ($) $ in Thousands | 2 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Monthly payment amount |  | $ 36 |  |
Balloon Payment At Maturity |  | 4,039 |  |
Face Amount Of Mortgage |  | 8,784 |  |
Carrying Amount of Mortgage |  | 4,884 |  |
Principal Amount Of Mortgage Subject To Delinquent Principal Or Interest |  | 1,100 |  |
Mortgage and other notes receivable |  | 7,672 | $ 8,945 |
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward] |  |  |  |
Beginning balance |  | 5,418 | 5,680 | $ 7,776
Additions | $ 102,446 | 0 | 1,802 | 0
Payments |  | (534) | (2,064) | (250)
Write-Offs |  | 0 | 0 | (1,846)
Ending balance |  | 4,884 | 5,418 | $ 5,680
Mortgage Receivable |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Mortgage and other notes receivable |  | 4,884 | $ 5,418 |
The Promenade, D'Iberville, MS | Mortgage Receivable |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Mortgage and other notes receivable |  | 1,100 |  |
Other |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Monthly payment amount |  | 2 |  |
Balloon Payment At Maturity |  | 2,534 |  |
Face Amount Of Mortgage |  | 2,597 |  |
Carrying Amount of Mortgage |  | 2,510 |  |
Principal Amount Of Mortgage Subject To Delinquent Principal Or Interest |  | $ 1,100 |  |
Current variable interest rate (as a percent) |  | 7.50% |  |
Other | Prime Rate |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.00% |  |
Columbia Place Outparcel | First Mortgage |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest rate (as a percent) |  | 5.00% |  |
Monthly payment amount |  | $ 3 |  |
Balloon Payment At Maturity |  | 210 |  |
Face Amount Of Mortgage |  | 360 |  |
Carrying Amount of Mortgage |  | 283 |  |
Principal Amount Of Mortgage Subject To Delinquent Principal Or Interest |  | $ 0 |  |
One Park Place - Chattanooga, TN | First Mortgage |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest rate (as a percent) |  | 5.00% |  |
Monthly payment amount |  | $ 21 |  |
Balloon Payment At Maturity |  | 0 |  |
Face Amount Of Mortgage |  | 3,200 |  |
Carrying Amount of Mortgage |  | 783 |  |
Principal Amount Of Mortgage Subject To Delinquent Principal Or Interest |  | $ 0 |  |
Village Square - Houghton Lake, MI | First Mortgage |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest rate (as a percent) |  | 4.00% |  |
Monthly payment amount |  | $ 10 |  |
Balloon Payment At Maturity |  | 1,295 |  |
Face Amount Of Mortgage |  | 2,627 |  |
Carrying Amount of Mortgage |  | 1,308 |  |
Principal Amount Of Mortgage Subject To Delinquent Principal Or Interest |  | $ 0 |  |
New Garden Crossing | First Mortgage | LIBOR |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.50% |  |
Minimum | Other |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest rate (as a percent) |  | 5.01% |  |
Maximum | Other |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest rate (as a percent) |  | 9.50% |  |

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- Definition The percentage points added to the reference rate or index during the adjustment period to compute the variable [fully indexed] rate on the loans receivable realized during the reporting period. This may be an effective margin for the period depending on the specific terms of the underlying loan agreement (for example, an annual disclosure for a loan with a quarterly adjustment period). + References No definition available. + Details
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