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Fair Value measurements - Gain / (Loss) Recognized (Table) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Derivative
Loss/ (gain) on derivative instruments	$ (41)	$ 390	$ 2,083
Freight Derivatives
Derivative
Loss/ (gain) on derivative instruments	(41)	390	2,078
Bunker Derivatives
Derivative
Loss/ (gain) on derivative instruments	$ 0	$ 0	$ 5

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959

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