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Acquisition - Schedule of Carrying Amount of Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Business Acquisition [Line Items]
Goodwill, Beginning Balance	$ 576,913
Goodwill, Ending Balance	628,093
Choptank Transport LLC [Member]
Business Acquisition [Line Items]
Goodwill, Beginning Balance	576,913
Acquisition	51,180
Goodwill, Ending Balance	$ 628,093

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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