v3.25.3
Revenue Recognition (Revenue Expected to be Recognized in Future Periods) (Details)
Sep. 30, 2025
USD ($)
Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 586,159,000
Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods 63,927,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods 63,574,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 7,474,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 208,220,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 29,931,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 139,001,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 14,022,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 61,214,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 10,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 30,361,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 2,500,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01 | Offshore pipeline transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 83,789,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01 | Onshore transportation and services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected to be recognized in future periods $ 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01 | Offshore Pipeline Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01 | Onshore Facilities and Transportation  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue expected timing of satisfaction period 1 year