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Vessels, net - Additional Information (Details) - USD ($) $ in Thousands	8 Months Ended	12 Months Ended
	Sep. 11, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 22, 2017
Property Plant And Equipment
Vessel improvement costs capitalized		$ 19,896	$ 277
Impairment of vessel		0	28,805	$ 3,282
Vessels' Improvements
Property Plant And Equipment
Vessel improvement costs capitalized		19,896	277
Vessels' Improvements | Installation of exhaust gas cleaning systems and ballast water treatment systems
Property Plant And Equipment
Vessel improvement costs capitalized		19,297
Paid advances relating to the purchase of exhaust gas cleaning systems		$ 1,400	2,055
M/T Amore Mio II
Property Plant And Equipment
Sale price agreed in Memorandum of Agreement	$ 11,150
Date of vessel sale	Oct. 15, 2018
Classification as asset held for sale			10,927
Impairment of vessel			$ 28,805
M/T Aristotelis
Property Plant And Equipment
Sale price agreed in Memorandum of Agreement					$ 29,400
Date of vessel sale					Apr. 25, 2018
Impairment of vessel				$ 3,282

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- Definition

Amount of assets expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

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- Definition

Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

+ References

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-Publisher FASB
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Date the entity disposed of a business or a group of assets, in CCYY-MM-DD format.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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