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Advances for Vessels, detail (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Advances For Assets Acquisition And Assets Under Construction
Advances for vessels, beginning balance	$ 8,596	$ 3,653
Additions for advances, including capitalized expenses and interest	50,423	65,425
Transferred to vessel cost	(39,725)	(60,482)
Advances for vessels, ending balance	$ 19,294	$ 8,596

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- Definition

Advances For Asset Acquisitions, Transfers And Changes

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- Definition

Gross amount, at the balance sheet date, of long-lived assets under construction that include construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service and advances and costs paid for assets under acquisition that have not been completed and delivered and not ready to be placed into service as at the balance sheet date.

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- Definition

Advances paid for vessels acquisitions, vessels under construction and vessel improvements and comprise payments of instalments that were due to the respective shipyard or third-party sellers, capitalized interest, certain capitalized expenses and expenditures for major improvements and regulatory compliance.

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