Fixed Assets and Asset Retirement Obligations (Schedule of Fixed Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 5,865,038	$ 5,464,040
Less: Accumulated depreciation	(1,768,465)	(1,551,855)
Net fixed assets	4,096,573	3,912,185
Crude oil and natural gas pipelines and related assets
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	2,844,288	2,839,443
Onshore facilities, machinery, and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	269,949	269,245
Onshore facilities, machinery, and equipment | Alkali Business
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	701,313	670,880
Transportation equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	22,340	21,106
Marine vessels
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	1,017,087	1,018,284
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	231,651	227,540
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	24,271	23,965
Construction in progress (1)
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	712,971	350,137
Other
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 41,168	$ 43,440