Fair value measurements and Hedging - Derivative instruments effect on statement of operations (Table) (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
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)	$ 633	$ (998)
Total Gain/(loss) recognized	633	(998)
Gain/(loss) on forward freight agreements and bunker swaps, net
Total Gain/(loss) recognized	(3,939)	(1,537)
Forward Freight Agreements [Member]
Gain/(loss) on forward freight agreements and bunker swaps, net
Realized gain/(loss) on forward freight agreements and freight options	1,023	(39)
Unrealized gain/(loss) on forward freight agreements and freight options	(1,169)	(1,560)
Bunker Swaps [Member]
Gain/(loss) on forward freight agreements and bunker swaps, net
Realized gain/(loss) on bunker swaps	(4,085)	58
Unrealized gain/(loss) on bunker swaps	$ 292	$ 4

The aggregate net effect in earnings due to derivatives.

No definition available.

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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.

+ References

No definition available.

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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.

+ References

No definition available.

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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.

+ References

No definition available.

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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.

+ References

No definition available.

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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 https://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
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