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Organization and Basis of Presentation - Interest Held in Properties (Details) | Sep. 30, 2018 mall other_property
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Consolidated Properties |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Development, Malls | mall | 0
Redevelopments, Malls | mall | 8
Development, All Other | other_property | 0
Redevelopments, All Other | other_property | 0
Unconsolidated Properties |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Development, Malls | mall | 0
Redevelopments, Malls | mall | 1
Development, All Other | other_property | 2
Redevelopments, All Other | other_property | 0

X
- Definition Number Of Other Properties Under Development + References No definition available. + Details
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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
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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
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X
- Definition Number of Malls Under Redevelopment + References No definition available. + Details
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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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- Details
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X
- Details
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