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Organization and Basis of Presentation - Properties Owned by Operating Partnership (Details) | Sep. 30, 2019 property associated_center office_building mall community_center mixed_use_center
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Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Malls | mall | 63
Associated Centers | associated_center | 23
Community Centers | community_center | 6
Office Buildings/Other | 6
Total Properties | property | 98
Consolidated Properties |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Malls | mall | 55
Associated Centers | associated_center | 20
Community Centers | community_center | 1
Office Buildings/Other | 4
Total Properties | property | 80
Number of mixed-use centers owned | mixed_use_center | 1
Consolidated Properties | CBL & Associates Limited Partnership |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Office Buildings/Other | 2
Unconsolidated Properties |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Malls | mall | 8
Associated Centers | associated_center | 3
Community Centers | community_center | 5
Office Buildings/Other | 2
Total Properties | property | 18

X
- Definition Number of associated centers in which interest is owned as of the balance sheet date. + References No definition available. + Details
Name: | cbl_NumberOfAssociatedCentersOwned
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of community center properties in which interest is owned as of the balance sheet date + References No definition available. + Details
Name: | cbl_NumberOfCommunityCentersOwned
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of office buildings in which interest is owned as of the balance sheet date. + References No definition available. + Details
Name: | cbl_NumberOfOfficeBuildingsOwned
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of regional malls/open air centers in which interest is owned as of the balance sheet date. + References No definition available. + Details
Name: | cbl_NumberOfRegionalMallsOpenAirCentersOwned
Namespace Prefix: | cbl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of mixed-use centers owned + References No definition available. + Details
Name: | cbl_Numberofmixedusecentersowned
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
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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