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Shareholders' and Member's Equity - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 20, 2025
Mar. 06, 2025
Feb. 21, 2025
Dec. 19, 2024
Dec. 05, 2024
Dec. 31, 2024
Dec. 31, 2024
Sole Liability              
Shareholders' and Member's Equity [Line Items]              
Limited liability interests             100.00%
Class B Shares              
Shareholders' and Member's Equity [Line Items]              
Shares converted             0
Class B Shares | December Private Placement | Landbridge              
Shareholders' and Member's Equity [Line Items]              
Number Of Opco units Purchesd By Private Placement       2,498,751      
O 2024 Q4 Dividends | Class A Shares              
Shareholders' and Member's Equity [Line Items]              
Dividend declared (in dollars per share)           $ 0.1  
Dividend declared payable date       Dec. 19, 2024      
Dividend payable record date         Dec. 05, 2024    
Dividend declared       $ 1.7      
O 2024 Q4 Dividends | Class A Shares | Landbridge              
Shareholders' and Member's Equity [Line Items]              
Dividend declared payable date       Dec. 19, 2024      
Dividend declared       $ 5.6      
Dividend payment (in dollars per share)       $ 0.1      
O 2024 Q4 Dividends | Class A Shares | Forecast              
Shareholders' and Member's Equity [Line Items]              
Dividend declared payable date Mar. 20, 2025            
Dividend payable record date   Mar. 06, 2025          
O 2024 Q4 Dividends | Subsequent Event | Class A Shares              
Shareholders' and Member's Equity [Line Items]              
Dividend declared (in dollars per share)     $ 0.1