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ORGANIZATION - Narrative (Details)	12 Months Ended
	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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Combined ownership percentage by subsidiaries in operating partnership.

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Number of subsidiaries owned.

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Operating leases income statement other rents.

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Operating leases income statement tenant reimbursements.

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Percentage of effective interest in operating partnership.

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Percentage of non controlling partner interest owned in operating partnership by third parties.

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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.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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The number of limited partner units issued.

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-SubTopic 10
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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The number of states the entity operates in as of the balance sheet date.

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The total amount of lease revenue recognized for the period for which the lessee was obligated under leasing arrangements regardless of any other events or conditions. This amount excludes contingent revenue and sublease revenue.

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This element represents the rental revenue earned during the period from lessee-operators based on revenues generated in their operations, generally in excess of a base amount. Such rental revenue is generally stipulated in the lease agreement, usually will provide for a fixed percentage of revenue to be paid as additional (or possibly only) rent due the lessor, and may be based on gross revenues, net revenues, or multiple variations thereof. Percentage rent is often required under leases with retail outlets located on premises owned by hoteliers, cruise lines, others in the hospitality industry, and shopping mall operators, among others.

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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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