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Basis of Presentation and General Information, textuals (Details) $ in Thousands	1 Months Ended
	Jun. 30, 2018 USD ($) shares	Dec. 31, 2018 item
Subsidiary, Sale of Stock [Line Items]
Number of additional public common stock offerings		5
Number of additional public preferred stock offerings		3
Number of subsidiaries		48
Number of drybulk vessels		41
Number of newbuild vessels		1
Cumulative redeemable perpetual preferred equity | $	$ 16,875
Series A Preferred Stock | Private Placement
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction | shares	100

X

- Definition

Amount of subscription receivable from investors for cumulative redeemable perpetual preferred equity.

+ References

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- Definition

Number of successfully completed public common stock offerings.

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- Definition

Number of successfully completed public preferred stock offerings.

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- Definition

Number of drybulk vessels owned and operated as of period end

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- Definition

Number of newbuild vessels scheduled to be acquired as of period end.

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- Definition

Number of subsidiaries owned by the entity.

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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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.

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