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Revenues - Summary of Amount Receivable from Customers under Various Fee Agreement (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($)
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | $ 20,076
Balance as of December 31, 2019 | 19,231
Revenue from Contract with Customers Under Various Fee Agreements [Member] |
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | 2,075
Balance as of December 31, 2019 | 2,413
Increase (decrease) | 338
Revenue from Contract with Customers Under Various Fee Agreements [Member] | Property Management Fees [Member] |
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | 567
Balance as of December 31, 2019 | 752
Increase (decrease) | 185
Revenue from Contract with Customers Under Various Fee Agreements [Member] | Asset Management Fees [Member] |
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | 954
Balance as of December 31, 2019 | 1,653
Increase (decrease) | 699
Revenue from Contract with Customers Under Various Fee Agreements [Member] | Acquisition, Disposition and Leasing Fee [Member] |
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | 490
Increase (decrease) | (490)
Revenue from Contract with Customers Under Various Fee Agreements [Member] | Other Fee Income [Member] |
Disaggregation Of Revenue [Line Items] |
Balance as of December 31, 2018 | 64
Balance as of December 31, 2019 | 8
Increase (decrease) | $ (56)

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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