Note 12 - Properties and Equipment, Accrued Expenses, Other Current Liabilities and Other Liabilities - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Vessels and related equipment	$ 1,094,233	$ 1,070,821
Other properties and equipment	41,750	35,819
Property, Plant and Equipment, Gross	1,135,983	1,106,640
Less accumulated depreciation and amortization	351,110	309,985
Properties and equipment, net	$ 784,873	$ 796,655

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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