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v3.25.1

Income Taxes (Narrative) (Details) | Dec. 31, 2024
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Income Tax Uncertainties [Abstract] |
Shipping income percentage | 50.00%
Tax rate on US source shipping income | 4.00%

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- Definition Tax rate applied by the tax authorities on US source shipping income + References No definition available. + Details
Name: | dsx_TaxRateOnUsSourceShippingIncome
Namespace Prefix: | dsx_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The percentage of Company's shipping income that would be treated as being United States source income. + References No definition available. + Details
Name: | dsx_UsSourceIncomePercentage
Namespace Prefix: | dsx_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_IncomeTaxUncertaintiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration