Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2018 |
Dec. 31, 2016 |
|
| SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward] | |||
| Balance at beginning of period | $ 0 | ||
| New mortgage loans | $ 0 | 0 | $ 0 |
| Collections of principal | $ 0 | 0 | (5,900) |
| Balance at end of period | $ 0 | $ 0 | |
| X | ||||||||||
- Definition Amount of decrease in 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, from collection of principal. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition The cash outflow from the purchase of receivables arising from the mortgage note on real estate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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