v3.26.1
Partners' Capital, Mezzanine Capital and Distributions (Narrative) (Details)
3 Months Ended 6 Months Ended 43 Months Ended
Jun. 08, 2026
USD ($)
$ / shares
shares
May 15, 2026
USD ($)
$ / shares
Mar. 06, 2026
USD ($)
$ / shares
shares
Feb. 13, 2026
USD ($)
$ / shares
Feb. 03, 2026
USD ($)
$ / shares
shares
Nov. 14, 2025
USD ($)
$ / shares
Aug. 14, 2025
USD ($)
$ / shares
May 15, 2025
USD ($)
$ / shares
Mar. 06, 2025
USD ($)
$ / shares
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
shares
Dec. 31, 2025
shares
Aug. 08, 2023
shares
Partners Capital And Distributions [Line Items]                                
Common units outstanding (in units) | shares                   122,214,318   122,214,318   122,214,318 122,464,318  
Less: Accumulated distributions and returns attributable to Class A Convertible Preferred Units | $                   $ (10,830,000) $ (14,868,000) $ (24,413,000) $ (43,270,000)      
Stock repurchased and cancelled (in shares) | shares                   250,000   250,000        
Stock repurchased and cancelled (in dollars per share) | $ / shares                   $ 14.57   $ 14.57        
Stock repurchased and cancelled | $                   $ 3,646,000   $ 3,646,000        
Affiliated Entity | Cameron Highway Oil Pipeline                                
Partners Capital And Distributions [Line Items]                                
Percentage of ownership after transaction                           64.00%    
Affiliated Entity | Independence Hub, LLC | Genesis Energy, LLC                                
Partners Capital And Distributions [Line Items]                                
Noncontrolling Interest, Ownership Percentage by Parent                   80.00%   80.00%   80.00%    
Class A Common Units | 2023 Repurchase Program                                
Partners Capital And Distributions [Line Items]                                
Percentage of shares authorized for repurchase                               0.10
Shares authorized to be repurchased (in shares) | shares                               12,253,922
Class A Convertible Preferred Stock Units                                
Partners Capital And Distributions [Line Items]                                
Class A Convertible Preferred Units redeemed (in shares) | shares 2,454,445   3,263,127   741,620       7,416,196              
Class A Convertible Preferred units redeemed (in dollars per share) | $ / shares $ 34.38   $ 34.38   $ 33.71       $ 35.40              
Class A Convertible Preferred Units redeemed, value (dollars) | $ $ 84,400,000   $ 112,200,000   $ 25,000,000.0       $ 262,500,000              
Less: Accumulated distributions and returns attributable to Class A Convertible Preferred Units | $                   $ (12,800,000) $ (14,900,000) $ (30,200,000) (41,800,000)      
Temporary equity, adjustment | $                   (2,000,000.0)   (5,800,000) $ 1,400,000      
Class A Convertible Preferred Stock Units | Preferred Unitholders                                
Partners Capital And Distributions [Line Items]                                
Total Amount | $ $ 1,800,000 $ 13,565,000 $ 2,200,000 $ 14,868,000 $ 300,000 $ 14,868,000 $ 14,868,000 $ 19,942,000 $ 5,100,000              
Partners' Capital Account, Distribution Per Unit of Limited Partner Interest | $ / shares $ 0.7183 $ 0.9473 $ 0.6841 $ 0.9473 $ 0.3473 $ 0.9473 $ 0.9473 $ 0.9473 $ 0.6841              
Limited Partner                                
Partners Capital And Distributions [Line Items]                                
Stock repurchased and cancelled | $                   $ 3,646,000   $ 3,646,000        
Limited Partner | Class A Common Units                                
Partners Capital And Distributions [Line Items]                                
Common units outstanding (in units) | shares                   122,174,321   122,174,321   122,174,321    
Limited Partner | Class B Common Units                                
Partners Capital And Distributions [Line Items]                                
Common units outstanding (in units) | shares                   39,997   39,997   39,997    
Limited Partner | Preferred Class A                                
Partners Capital And Distributions [Line Items]                                
Common units outstanding (in units) | shares                   9,236,530   9,236,530   9,236,530 15,695,722