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Revenues - Narrative (Details)	12 Months Ended
	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Lease commission recognized upon lease execution (as a percent)	50.00%

X

- Definition

Revenue, Performance Obligation, Lease Commission Recognized Upon Lease Execution, Percentage

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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