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Mortgage and Other Notes Receivable - Summary (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Mortgage And Other Notes Receivable [Line Items] |  |
Assignment of the partnership interest (as a percent) | 100.00% |
Mortgage and other notes receivable | $ 2,928,000 | $ 4,662,000
Mortgage Receivable |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Interest Rate (as a percent) | 3.48% |
Mortgage and other notes receivable | $ 1,100,000 | $ 2,637,000
Mortgage Receivable | D'Iberville Promenade, LLC |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Mortgage and other notes receivable | 1,100,000 |
Mortgage Receivable | Minimum |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Interest Rate (as a percent) |  | 4.28%
Mortgage Receivable | Maximum |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Interest Rate (as a percent) |  | 9.50%
Other Notes Receivable |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Mortgage and other notes receivable | 1,828,000 | $ 2,025,000
Other Notes Receivable | The Shoppes At St Clair Square |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Writing off for tenant receivables | $ 1,230,000 |
Other Notes Receivable | Minimum |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Interest Rate (as a percent) | 4.00% | 4.00%
Other Notes Receivable | Maximum |  |
Mortgage And Other Notes Receivable [Line Items] |  |
Interest Rate (as a percent) | 5.00% | 5.00%

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- Definition Percentage of assignment of the partnership interest in the real estate. + References No definition available. + Details
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- Definition Interest rate 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 B -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 B)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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