v3.26.1
Share-Based Compensation - Summary (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Feb. 11, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Restricted Stock Awards          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based compensation cost   $ 1,701 $ 2,276 $ 3,374 $ 4,402
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]          
Unvested, Unearned, beginning of period (shares)       338,056  
Granted (shares)       171,158  
2023 PSUs earned and granted as restricted stock (shares)       392,257  
Vested, Earned (shares)       (177,834)  
Forfeited (shares)       (2,001)  
Unvested, Unearned, end of period (shares)   721,636   721,636  
Weighted-Average Grant Date Fair Value          
Weighted average grant-date fair value, unvested, beginning of period (USD per share)       $ 28.35  
Weighted average grant-date fair value, granted (USD per share)       36.05  
Weighted average grant-date fair value, 2023 PSUs earned and granted as restricted stock (USD per share)       38.79  
Weighted average grant-date fair value, vested, earned (USD per share)       27.46  
Weighted average grant-date fair value, forfeited (USD per share)       32.2  
Weighted average grant-date fair value, unvested, ending of period (USD per share)   $ 36.06   $ 36.06  
Unrecognized compensation cost related to nonvested stock awards   $ 16,879   $ 16,879  
Compensation cost to be recognized over a weighted-average period       2 years 3 months 18 days  
Weighted average grant-date fair value, granted       $ 6,169  
Total fair value of shares vested       $ 6,437  
Granted (shares)       171,158  
weighted-average grant date fair value   $ 36.06   $ 36.06  
Share-based compensation cost capitalized as part of real estate assets   $ 26 32 $ 53 62
Performance Stock Unit Awards          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based compensation cost   $ 769 $ 1,981 $ 1,433 $ 3,815
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]          
Unvested, Unearned, beginning of period (shares)       535,849  
Granted (shares)       111,528  
Vested, Earned (shares) [1]       (196,128)  
Unvested, Unearned, end of period (shares)   464,286   464,286  
Weighted-Average Grant Date Fair Value          
Weighted average grant-date fair value, unvested, beginning of period (USD per share)       $ 31.78  
Weighted average grant-date fair value, granted (USD per share)       29.22  
Weighted average grant-date fair value, vested, earned (USD per share) [1]       36.21  
Weighted average grant-date fair value, unvested, ending of period (USD per share) $ 29.22 [2] $ 29.63   $ 29.63  
Unrecognized compensation cost related to nonvested stock awards   $ 16,879   $ 16,879  
Compensation cost to be recognized over a weighted-average period       2 years 3 months 18 days  
Weighted average grant-date fair value, granted       $ 3,259  
Performance period 3 years        
Granted (shares)       111,528  
Incremental granted (shares) [3]       13,037  
Weighted average incremental grant-date fair value, granted (USD per share) [3]       43.69  
weighted-average grant date fair value $ 29.22 [2] $ 29.63   $ 29.63  
Risk-free interest rate (as a percent) [4] 3.50%        
Expected share price volatility (as a percent) [5] 25.00%        
2023 PSUs Earned and Granted as Restricted Stock          
Weighted-Average Grant Date Fair Value          
Weighted average grant-date fair value, granted       $ 15,214  
[1] The February 2023 PSUs were earned as of December 31, 2025 and were granted as restricted stock awards in February 2026 that will vest over a one-year service period.
[2] The value of the 2026 PSU awards is estimated on the date of grant using a Monte Carlo simulation model. The valuation consists of computing the fair value using CBL's simulated stock price as well as TSR over a three-year performance period. The award is modeled as a contingent claim in that the expected return on the underlying shares is risk-free and the rate of discounting the pay off of the award is also risk-free. The weighted-average fair value per share related to the 2026 PSUs consists of 33,366 PSUs at a fair value of $36.40 per share (which relates to the relative TSR) and 78,162 PSUs at a fair value of $26.16 per share (which relates to absolute TSR).
[3] PSUs granted shall be adjusted as if the shares of common stock represented by such PSUs had received any applicable stock or cash dividends declared. For stock dividends, a number of PSUs shall be added to the target amount corresponding to the number of shares of common stock that would have been payable per such stock dividend on the then outstanding number of PSUs under the agreement as if common stock had been issued for such PSUs. For cash dividends, a number of PSUs shall be added to the target amount corresponding to the number of shares of common stock that could have been acquired by the cash dividend payable on the then outstanding number of PSUs under the agreement as if common stock had been issued for such PSUs, and the calculation of the number of shares of common stock that could have been acquired shall be based on the closing price of the common stock on the record date for the cash dividend at issue.
[4] The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury securities in effect as of the valuation date, which is the grant date listed above.
[5] The computation of expected volatility for the 2026 PSUs was based on the historical volatility of CBL's shares of common stock for a trading period equal to the time from the grant date to the end of the performance period.

As of June 30, 2026, there was $16,879 of total unrecognized compensation cost related to unvested restricted stock awards and PSUs, which is expected to be recognized over a weighted-average period of 2.3 years.