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Organization - (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) ft² property joint_venture | Dec. 31, 2019 ft² property joint_venture
Organization [Line Items] |  |
Number of joint ventures | joint_venture | 1 | 1
Deferred rental payments | $ 1,583 |
Proceeds from rents received | 1,379 |
Deferred rental payments receivable | $ 5,791 |
Unconsolidated Retail Properties |  |
Organization [Line Items] |  |
Number of managed retail properties | property | 10 | 11
Gross Leasable Area (square feet) | ft² | 2,470,193 | 2,580,414
Wholly-Owned Retail Properties |  |
Organization [Line Items] |  |
Number of retail properties | property | 55 | 54
Gross Leasable Area (square feet) | ft² | 8,392,572 | 8,311,521

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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property, by the lessor or lessee, respectively. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121598990&loc=d3e40879-112712 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121549951&loc=d3e39896-112707 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121549951&loc=d3e39927-112707 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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