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Significant Accounting Policies - Revenues (Table) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Voyage revenues	$ 253,661	$ 143,471
Time charters
Revenues from External Customers and Long-Lived Assets [Line Items]
Voyage revenues	152,079
Voyage charters
Revenues from External Customers and Long-Lived Assets [Line Items]
Voyage revenues	99,029
Pool revenues
Revenues from External Customers and Long-Lived Assets [Line Items]
Voyage revenues	$ 2,553

X

- Definition

Revenues arising from services provided to charterers according to the terms and conditions included in charter agreements. Voyage revenues may include the amortization of above/below market acquired time charter.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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