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Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 898,770	$ 889,108
Land
Property, Plant and Equipment
Property, plant and equipment, at cost	21,422	21,459
Improvements to land and buildings
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 132,064	135,227
Improvements to land and buildings | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	10 years
Improvements to land and buildings | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	25 years
Storage equipment
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 122,300	121,437
Storage equipment | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	5 years
Storage equipment | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	50 years
Marine vessels
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 183,414	179,666
Marine vessels | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	4 years
Marine vessels | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	25 years
Operating plant and equipment
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 360,122	356,293
Operating plant and equipment | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	3 years
Operating plant and equipment | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	50 years
Furniture, fixtures and other equipment
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 13,727	14,209
Furniture, fixtures and other equipment | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	3 years
Furniture, fixtures and other equipment | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	20 years
Transportation equipment
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 50,961	49,836
Transportation equipment | Minimum
Property, Plant and Equipment
Depreciable lives (in years)	3 years
Transportation equipment | Maximum
Property, Plant and Equipment
Depreciable lives (in years)	7 years
Construction in progress
Property, Plant and Equipment
Property, plant and equipment, at cost	$ 14,760	$ 10,981

X

- Definition

Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

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+ References

No definition available.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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