Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Fixed Assets, Net) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 6,248,511	$ 5,865,038
Less: Accumulated depreciation	(1,925,879)	(1,768,465)
Net fixed assets	4,322,632	4,096,573
Changes in estimate	3,915
Settlements	(68)
Asset retirement obligation balance	241,736	228,573
Accretion expense	9,316
Crude oil and natural gas pipelines and related assets
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	2,848,810	2,844,288
Onshore facilities, machinery and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	270,676	269,949
Onshore facilities, machinery and equipment | Alkali Business
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	787,040	701,313
Transportation equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	25,652	22,340
Marine vessels
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	1,020,568	1,017,087
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	238,697	231,651
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	24,749	24,271
Construction in progress(1)
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	991,151	712,971
Other
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 41,168	$ 41,168