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Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Abstract]
Revenues by major source	$ 808,022	$ 750,444
Revenue recognized	54,400	38,800
Marine Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	475,412	412,495
Marine Transportation [Member] | Inland Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	386,007	337,888
Marine Transportation [Member] | Coastal Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	89,405	74,607
Distribution and Services [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	332,610	337,949
Distribution and Services [Member] | Commercial and Industrial [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	142,624	153,054
Distribution and Services [Member] | Power generation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	135,669	90,309
Distribution and Services [Member] | Oil and gas [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	$ 54,317	$ 94,586

X

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
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-Publisher FASB
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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