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v3.25.2

Noncash Investing and Financing Activities - Summary (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024
Other Significant Noncash Transactions [Line Items] |  |
Additions to real estate assets accrued but not yet paid | $ 11,792 | $ 10,339

X
- Definition Future cash outflow to pay for real estate additions accrued but not yet paid. + References No definition available. + Details
Name: | cbl_AdditionsToRealEstateAssetsAccruedButNotYetPaid
Namespace Prefix: | cbl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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
Name: | us-gaap_OtherSignificantNoncashTransactionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration