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SEGMENT DISCLOSURE - Assets and Capital Expenditures and Loan Originations (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Segment disclosure |  |  |
Total assets | $ 663,542 |  | $ 667,592
Total capital expenditures | 4,828 | $ 3,205 |
Loan originations | 11,844 | 3,404 |
Total capital expenditures and loan originations | 16,672 | 6,609 |
Office |  |  |
Segment disclosure |  |  |
Total assets | 468,599 |  | 460,951
Total capital expenditures | 4,534 | 2,597 |
Hotel |  |  |
Segment disclosure |  |  |
Total assets | 104,507 |  | 104,029
Total capital expenditures | 294 | $ 608 |
Lending |  |  |
Segment disclosure |  |  |
Total assets | 79,197 |  | 82,140
Non-segment |  |  |
Segment disclosure |  |  |
Total assets | $ 11,239 |  | $ 20,472

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- Definition Represents the expenditures made during the period for additions and improvements to real estate investments, excluding acquisitions. + References No definition available. + Details
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Namespace Prefix: | cmct_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the amount of capital expenditures and loan origination cost of assets held for sale incurred during the reporting period. + References No definition available. + Details
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Namespace Prefix: | cmct_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition For disposal group, total amount of new mortgage loans on real estate during the reporting period. + References No definition available. + Details
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Namespace Prefix: | cmct_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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Balance Type: | debit
Period Type: | instant

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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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- Details
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- Details
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