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Notes Receivable, Net - Schedule of Notes Receivable (Details) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) debtinstrument | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Net carrying amount of notes receivable | $ 114,943 | $ 111,775 | $ 160,991 | $ 283,125
Number of instruments held | debtinstrument | 7 |  |  |
Core Portfolio |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Net carrying amount of notes receivable | $ 76,467 | 58,637 |  |
Number of instruments held | debtinstrument | 5 |  |  |
Core Portfolio | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Maturity Date | 2020-04 |  |  |
Effective interest rate | 4.70% |  |  |
Core Portfolio | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Maturity Date | 2026-04 |  |  |
Effective interest rate | 8.10% |  |  |
Fund Portfolio | Fund II |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Net carrying amount of notes receivable | $ 33,170 | 32,582 |  |
Number of instruments held | debtinstrument | 1 |  |  |
Maturity Date | 2020-12 |  |  |
Effective interest rate | 1.75% |  |  |
Fund Portfolio | Fund III |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Net carrying amount of notes receivable | $ 5,306 | 5,306 |  |
Number of instruments held | debtinstrument | 1 |  |  |
Maturity Date | 2020-07 |  |  |
Effective interest rate | 18.00% |  |  |
Fund Portfolio | Fund IV |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Net carrying amount of notes receivable |  | $ 15,250 |  |
Maturity Date | 2021-02 |  |  |
Effective interest rate | 15.30% |  |  |

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- 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. + References Reference 1: 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 G)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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