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Organization and Basis of Presentation - Narrative (Details)
shares in Millions
 9 Months Ended
Nov. 01, 2021
Sep. 30, 2021
state
subsidiary
shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Number of states in which entity operates | state   24
Number of wholly owned subsidiaries   36
Consolidated Properties    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Non-controlling limited partner interest ownership of CBL's Predecessor in the Operating Partnership (as a percent)   1.90%
Common stock owned by CBL's Predecessor (shares) | shares   20.0
Total effective interest of CBL's Predecessor in Operating Partnership (as a percent)   10.00%
Consolidated Properties | CBL Holdings    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Ownership interest in qualified subsidiaries (as a percent)   100.00%
CBL & Associates Limited Partnership    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Number of wholly owned subsidiaries   2
Combined ownership by the subsidiaries in operating partnership (as a percent)   98.10%
CBL & Associates Limited Partnership | CBL Associates Properties Inc    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Ownership of the sole general partner in partnership (as a percent)   1.00%
Limited partnership interest owned by CBL Holdings II, Inc. in the operating partnership (as a percent)   97.10%
CBL & Associates Limited Partnership | Subsequent Event    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Combined ownership by the subsidiaries in operating partnership (as a percent) 99.90%  
CBL & Associates Limited Partnership | Subsequent Event | CBL Associates Properties Inc    
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]    
Ownership of the sole general partner in partnership (as a percent) 1.00%  
Limited partnership interest owned by CBL Holdings II, Inc. in the operating partnership (as a percent) 98.90%