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Fair Value Measurements and Hedging - Derivative instruments effect on statement of operations (Table) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest and finance costs
Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other comprehensive income/(loss) (Note 7)	$ (2,351)	$ (848)	$ (0)
Total Gain/(loss) recognized	(2,351)	(848)	0
Gain/(loss) on forward freight agreements and bunker swaps, net
Total Gain/(loss) recognized	3,564	16,156	4,411
Forward Freight Agreements [Member]
Gain/(loss) on forward freight agreements and bunker swaps, net
Realized gain/(loss) on forward freight agreements and freight options	1,308	(5,995)	6,043
Unrealized gain/(loss) on forward freight agreements and freight options	1,802	(430)	(321)
Bunker Swaps [Member]
Gain/(loss) on forward freight agreements and bunker swaps, net
Realized gain/(loss) on bunker swaps	748	20,856	(1,386)
Unrealized gain/(loss) on bunker swaps	$ (294)	$ 1,725	$ 75

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- Definition

The aggregate net effect in earnings due to derivatives.

+ References

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The realized gain / (loss) of bunker swaps agreements, held at each balance sheet date, that was included in earnings for the period.

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The realized gain / (loss) of forward freight agreements, held at each balance sheet date, that was included in earnings for the period.

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The net change in the difference between the fair value, of bunker swaps, held at each balance sheet date, that was included in earnings for the period.

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The net change in the difference between the fair value, of forward freight agreements, held at each balance sheet date, that was included in earnings for the period.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

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-Section 50
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The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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