Organization and Basis of Presentation - Properties Owned by Operating Partnership (Details)	Sep. 30, 2020 mall associated_center community_center office_building property
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Malls | mall	62
Associated Centers | associated_center	23
Community Centers | community_center	6
Office Buildings/Other	8
Total Properties | property	99
Consolidated Properties
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Malls | mall	52
Associated Centers | associated_center	20
Community Centers | community_center	1
Office Buildings/Other	4
Total Properties | property	77
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	10
Associated Centers | associated_center	3
Community Centers | community_center	5
Office Buildings/Other	4
Total Properties | property	22