Unconsolidated Affiliates and Noncontrolling Interests - Variable Interest Entities (Parenthetical) (Details) - CBL-TRS Med OFC Holding, LLC	Mar. 31, 2024
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)	50.00%
CBL DMC I, LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)	50.00%
Unconsolidated VIEs | CBL DMC I, LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)	50.00%