Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Fixed Assets, Net) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 6,059,542	$ 6,059,542	$ 5,865,038
Less: Accumulated depreciation	(1,875,840)	(1,875,840)	(1,768,465)
Net fixed assets	4,183,702	4,183,702	4,096,573
Changes in estimate		3,915
Settlements	(60)
Asset retirement obligation balance	239,020	239,020	228,573
Accretion expense	6,592
Crude oil and natural gas pipelines and related assets
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	2,846,411	2,846,411	2,844,288
Onshore facilities, machinery and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	270,352	270,352	269,949
Onshore facilities, machinery and equipment | Alkali Business
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	731,112	731,112	701,313
Transportation equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	23,819	23,819	22,340
Marine vessels
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	1,014,495	1,014,495	1,017,087
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	238,521	238,521	231,651
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	24,704	24,704	24,271
Construction in progress(1)
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	868,960	868,960	712,971
Other
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 41,168	$ 41,168	$ 41,168