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Related Party Agreements and Transactions (Narrative) (Detail) - Related Party	12 Months Ended
	Dec. 31, 2025
Fuels Distribution [Member]
Related Party Transaction [Line Items]
Term Of Agreements	10 years
Renewal Term Agreement	5 years
Marine Services Equipment [Member]
Related Party Transaction [Line Items]
Renewal Term Agreement	3 years
Number of renewals	2
Co-location Agreements [Member]
Related Party Transaction [Line Items]
Term Of Agreements	50 years
Marine Management Services [Member]
Related Party Transaction [Line Items]
Term Of Agreements	5 years
Renewal Term Agreement	5 years
Maximum | Marine Services Equipment [Member]
Related Party Transaction [Line Items]
Term Of Agreements	3 years
Operating Agreements [Member] | Minimum
Related Party Transaction [Line Items]
Term Of Agreements	1 year
Operating Agreements [Member] | Maximum
Related Party Transaction [Line Items]
Term Of Agreements	10 years

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