Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Fixed Assets, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 6,581,652	$ 6,500,897
Less: Accumulated depreciation	(2,034,076)	(1,972,596)
Net fixed assets	4,547,576	4,528,301
Settlements	(60)
Asset retirement obligation balance	246,425	243,708
Accretion expense	2,777
Crude oil and natural gas pipelines and related assets
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	2,950,573	2,945,215
Onshore facilities, machinery and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	288,704	271,271
Onshore facilities, machinery and equipment | Alkali Business
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	1,150,287	1,147,291
Transportation equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	26,673	24,913
Marine vessels
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	1,023,993	1,021,080
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	294,852	293,733
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	25,227	25,029
Construction in progress(1)
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	792,032	731,197
Other
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 29,311	$ 41,168