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ORGANIZATION (Summary of Interest Held in Properties) (Details) | Dec. 31, 2017 other_property mall
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Parent |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Development, Malls (mall) | 0
Expansion, Malls (mall) | 1
Redevelopment, Malls (mall) | 3
Noncontrolling Interests |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Development, Malls (mall) | 0
Development, Other Properties (other property) | other_property | 1
Expansion, Malls (mall) | 0
Expansion, Other Properties (other property) | other_property | 0
Redevelopment, Malls (mall) | 1
Redevelopment, Other Properties (other property) | other_property | 0

X
- Definition Number Of Other Properties Under Development + References No definition available. + Details
Name: | cbl_NumberOfOtherPropertiesUnderDevelopment
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Other Properties Under Expansion + References No definition available. + Details
Name: | cbl_NumberOfOtherPropertiesUnderExpansion
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Other Properties Under Redevelopment + References No definition available. + Details
Name: | cbl_NumberOfOtherPropertiesUnderRedevelopment
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Mall Under Development + References No definition available. + Details
Name: | cbl_NumberofMallUnderDevelopment
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Malls Under Expansion + References No definition available. + Details
Name: | cbl_NumberofMallsUnderExpansion
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Malls Under Redevelopment + References No definition available. + Details
Name: | cbl_NumberofMallsUnderRedevelopment
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- 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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |