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Property and equipment, net, detail (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Movement in Property, Plant and Equipment [Roll Forward]
Property and Equipment, Beginning Balance	$ 28,269
Additions in property and equipment	436
Property and Equipment, Ending Balance	28,705
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]
Accumulated Depreciation, Property and Equipment, Beginning Balance	(5,427)
Depreciation for the year	(247)
Accumulated Depreciation, Property and Equipment, Ending Balance	(5,674)
Property, Plant and Equipment, Net, by Type [Abstract]
Property And Equipment Net, Beginning Balance	22,842
Additions in property and equipment	436
Depreciation for the year	(247)
Property And Equipment Net, Ending Balance	$ 23,031

X

- Definition

The accumulated depreciation and amortization relating to buildings, office furniture, vehicles, computer software and hardware.

+ References

No definition available.

+ Details

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Namespace Prefix:	dsx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

No definition available.

+ Details

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Namespace Prefix:	dsx_
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Balance Type:	debit
Period Type:	instant

X

- Definition

Real estate, furniture and fixtures net of depreciation

+ References

No definition available.

+ Details

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Namespace Prefix:	dsx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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X

- Definition

Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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Balance Type:	debit
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X

- Definition

The cash outflow for acquisition of furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585

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X

- References

No definition available.

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