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Advances for vessels under construction and acquisition of vessels (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Vessels [Line Items]
Total	$ 48,574	$ 64,570
Advances for vessels under construction and acquisition of vessels
Vessels [Line Items]
Pre-delivery yard installments and Fair value adjustment	30,402	32,602
Bareboat capital leases - upfront hire & handling fees	10,460	25,272
Capitalized interest and finance costs	4,753	4,966
Other capitalized costs	2,959	1,730
Total	$ 48,574	$ 64,570

X

- Definition

Amount of accumulated interest and finance costs as part of vessels under construction and acquisitions cost basis.

+ References

No definition available.

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X

- Definition

Accumulated amount of pre-delivery installments to the yard, for vessels under construction.

+ References

No definition available.

+ Details

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X

- Definition

Accumulated amount of upfront hire & handling fees for vessels under capital leases.

+ References

No definition available.

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X

- Definition

Amount of accumulated other capitalized costs for vessels under construction and acquisition.

+ References

No definition available.

+ Details

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X

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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- 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.

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