Contingencies - Guarantees (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Guarantor Obligations [Line Items]
Obligation Recorded to Reflect Guaranty	$ 556	$ 561
Ambassador Infrastructure, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	65.00%
Outstanding Balance	$ 5,749
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 5,749
Obligation Recorded to Reflect Guaranty	$ 70	70
West Melbourne I, LLC - Phase I
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 36,570
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 18,285
Obligation Recorded to Reflect Guaranty	$ 183	185
West Melbourne I, LLC - Phase II
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 11,673
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 5,837
Obligation Recorded to Reflect Guaranty	$ 58	59
Port Orange I, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 48,948
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 24,474
Obligation Recorded to Reflect Guaranty	$ 245	$ 247
Atlanta Outlet Outparcels, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 4,375
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 4,375
Louisville Outlet Shoppes, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 7,247
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 7,247
West Melbourne I LLC Phase I, West Melbourne I LLC Phase II and Port Orange I, LLC
Guarantor Obligations [Line Items]
Option extension term of debt instrument	1 year

Debt instrument, period of extension option.

No definition available.

Name:	cbl_DebtInstrumentPeriodOfExtensionOption
Namespace Prefix:	cbl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of third party construction loan guaranteed by the company.

+ References

No definition available.

+ Details

Name:	cbl_GuarantorObligationsPercentageObligationOfConstructionLoan
Namespace Prefix:	cbl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Company's maximum guaranteed amount after loans were partially paid down.

+ References

No definition available.

+ Details

Name:	cbl_MaximumGuaranteeObligationAfterLoansPartiallyPaidDown
Namespace Prefix:	cbl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_GuaranteeObligationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12201-110248

+ Details

Name:	us-gaap_GuaranteesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the current and noncurrent portions of a long-term real estate loan with an initial maturity beyond one year or beyond the normal operating cycle, if longer, to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project (generally one to seven years), usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property.

+ 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 210.9-03.16)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20,22)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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 210.7-03.16)
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

Name:	us-gaap_LongtermConstructionLoanCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	srt_OwnershipAxis=cbl_AmbassadorInfrastructureLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_WestMelbourneILLCPhaseIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_WestMelbourneILLCPhaseIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_PortOrangeILlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_AtlantaOutletOutparcelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_LouisvilleOutletShoppesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cbl_WestMelbourneILLCPhaseIAndIIAndPortOrangeILLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: