Derivatives (Schedule of Effect on Operating Results) (Details) - Commodity Derivatives - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Income (Loss)	$ (7,571)	$ (370)
Contracts designated as hedges under accounting guidance | Onshore transportation and services product costs
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Income (Loss)	(6,111)	(283)
Contracts not considered hedges under accounting guidance | Onshore transportation and services product costs; Offshore transportation operating costs
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Income (Loss)	$ (1,460)	$ (87)