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Contingencies - Environmental Contingencies (Details) | 9 Months Ended
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Sep. 30, 2022 USD ($)
Commitments And Contingencies Disclosure [Abstract] |
Environmental liability insurance, maximum coverage per incident (up to) | $ 40,000
Environmental liability insurance, annual coverage limit (up to) | $ 40,000

X
- Definition Annual coverage limit provided by the insurance arrangement for environmental liability claims. + References No definition available. + Details
Name: | cbl_EnvironmentalLiabilityInsuranceAnnualCoverageLimit.
Namespace Prefix: | cbl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Environmental Liability Insurance, Maximum Coverage Per Incident + References No definition available. + Details
Name: | cbl_EnvironmentalLiabilityInsuranceMaximumCoveragePerIncident
Namespace Prefix: | cbl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration