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ORGANIZATION - Narrative (Details) | 12 Months Ended
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Dec. 31, 2019 state subsidiary shares | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Number of states in which entity operates | state | 26 |  |
Number of wholly owned subsidiaries | subsidiary | 36 |  |
Minimum rents |  | $ 588,007,000 | $ 624,161,000
Percentage rents |  | 11,759,000 | 11,874,000
Other rents |  | 12,034,000 | 19,008,000
Tenant reimbursements |  | $ 217,313,000 | $ 254,552,000
Consolidated Properties |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Non-controlling limited partner interest of third parties in Operating partnership (as a percent) | 3.90% |  |
Common stock owned by CBL's Predecessor (shares) | shares | 4,300,000 |  |
Total combined effective interest of CBL's Predecessor in Operating Partnership (as a percent) | 11.20% |  |
CBL Associates Properties Inc | Consolidated Properties |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Non-controlling limited partner interest ownership of CBL's Predecessor in the Operating Partnership (as a percent) | 9.10% |  |
Consolidated Properties | CBL Holdings |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Ownership interest in qualified subsidiaries (as a percent) | 100.00% |  |
CBL & Associates Limited Partnership |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Number of wholly owned subsidiaries | subsidiary | 2 |  |
Combined ownership by the subsidiaries in operating partnership (as a percent) | 87.00% |  |
CBL & Associates Limited Partnership | CBL Associates Properties Inc |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Ownership of the sole general partner in partnership (as a percent) | 1.00% |  |
Limited partnership interest owned by CBL Holdings II, Inc. in the operating partnership (as a percent) | 86.00% |  |

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