Entity Addresses, Address Type [Axis] Business Contact [Member] Long-term Debt, Type [Axis] 8.30% 2022 Notes [Member] Long-term Debt [Member] Capital Lease Obligations [Member] Equity Components [Axis] Preferred Stock [Member] Common Stock [Member] Treasury Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] AOCI Attributable to Parent [Member] Long-Lived Tangible Asset [Axis] Songa Vessels [Member] E.R. Vessels [Member] Delphin Vessels [Member] Eneti Vessels [Member] Statistical Measurement [Axis] Minimum [Member] Maximum [Member] Combined carrying capacity [Member] Gargantua [Member] Star Gina 2GR [Member] Maharaj [Member] Goliath [Member] Star Leo [Member] Star Laetitia [Member] Star Ariadne [Member] Star Virgo [Member] Star Libra [Member] Star Sienna [Member] Star Marisa [Member] Star Karlie [Member] Star Eleni [Member] Star Magnanimus [Member] Debbie H [Member] Star Ayesha [Member] Katie K [Member] Leviathan [Member] Peloreus [Member] Star Claudine [Member] Star Ophelia [Member] Star Pauline [Member] Star Martha [Member] Pantagruel [Member] Star Borealis [Member] Star Polaris [Member] Star Lyra [Member] Star Bueno [Member] Star Borneo [Member] Star Marilena [Member] Star Marianne [Member] Star Janni [Member] Star Angie [Member] Big Fish [Member] Kymopolia [Member] Star Triumph [Member] Star Scarlett [Member] Star Audrey [Member] Big Bang [Member] Star Paola [Member] Star Eva [Member] Star Vega [Member] Star Sirius [Member] Madredeus [Member] Amami [Member] Star Aphrodite [Member] Star Piera [Member] Star Despoina [Member] Star Kamila [Member] Star Electra [Member] Star Angelina [Member] Star Gwyneth [Member] Star Luna [Member] Star Bianca [Member] Star Maria [Member] Pendulum [Member] Star Markella [Member] Star Jeanette [Member] Star Danai [Member] Star Elizabeth [Member] Star Pavlina [Member] Star Georgia [Member] Star Sophia [Member] Star Mariella [Member] Star Moira [Member] Star Renee [Member] Star Jennifer [Member] Star Laura [Member] Star Mona [Member] Star Nasia [Member] Star Astrid [Member] Star Helena [Member] Star Nina [Member] Star Alessia [Member] Star Calypso [Member] Star Suzanna [Member] Star Charis [Member] Mercurial Virgo [Member] Stardust [Member] Star Sky [Member] Star Lambada [Member] Star Capoeira [Member] Star Carioca [Member] Star Macarena [Member] Star Lydia [Member] Star Nicole [Member] Star Virginia [Member] Star Genesis [Member] Star Flame [Member] Star Iris [Member] Star Emily [Member] Idee Fixe [Member] Roberta [Member] Laura [Member] Star Athena [Member] Kaley [Member] Kennadi [Member] Mackenzie [Member] Star Apus [Member] Star Bovarius [Member] Star Subaru [Member] Star Wave [Member] Star Challenger [Member] Star Fighter [Member] Honey Badger [Member] Star Lutas [Member] Wolverine [Member] Star Antares [Member] Star Monica [Member] Star Aquarius [Member] Star Pisces [Member] Star Glory [Member] Star Pyxis [Member] Star Hydrus [Member] Star Cleo [Member] Diva [Member] Star Centaurus [Member] Star Hercules [Member] Star Pegasus [Member] Star Cepheus [Member] Star Columba [Member] Star Dorado [Member] Star Aquila [Member] Star Bright [Member] Strange Attractor [Member] Star Omicron [Member] Star Zeta [Member] Star Theta [Member] Vessels in operation Customer [Axis] Charterer A [Member] Charterer B [Member] Property Subject to or Available for Operating Lease [Axis] Charter In Vessels [Member] Real Estate, Type of Property [Axis] Office Building [Member] Office Rent Payments [Member] Related Party [Axis] Oceanbulk Maritime and its affiliates [Member] Interchart [Member] AOM [Member] Starocean [Member] Coromel Maritime Limited [Member] Product Shipping and Trading S.A. [Member] Combine Marine Ltdt [Member] Management [Member] Augustea Technoservices Ltd. and affiliates [Member] Iblea Ship Management Limited [Member] Eagle Bulk [Member] Augustea Technoservices Ltd. [Member] Hartree Marine Fuels LLC [Member] Executive Officer [Member] Directors [Member] Combine Marine Ltd. and Alma Properties [Member] Songa Shipmanagement Ltd. [Member] AOM [Member] AOM [Member] [Default Label] Sydelle [Member] Business Acquisition [Axis] Related Party Transaction [Axis] Services Agreement [Member] Scenario [Axis] Non - Employee Directors [Member] Chairman of Audit Committee [Member] Audit Committee Member [Member] Attendance Of Meetings [Member] Combine Marine Ltd [Member] Currency [Axis] Euro Member Countries, Euro Alma Properties [Member] Legal Entity [Axis] Oaktree Capital Management L.P. [Member] Oaktree Shareholder Agreement [Member] Beneficial ownership of 40% ore more [Member] Beneficial Ownershio of 25% or more but less than 40% [Member] Beneficial Ownership of 15% or more but less than 25% [Member] Beneficial ownership of 5% or more but less than 15% [Member] Held By Local Entrepreneurs [Member] First Vessel [Member] Second Vessel [Member] Piraeus Bank S. A. [Member] CCL Pool [Member] Cost [Member] Accumulated depreciation [Member] Net Book Value [Member] Collateral Held [Axis] First-priority mortgage [Member] Lease Agreements [Member] Second-priority mortgage [Member] Star Marilena, Star Bueno and Star Borneo [Member] Eneti Acquisition Vessels [Member] Eneti Warrant [Member] Star Bovarius Star Subaru Star Capoeira Star Carioca Star Lambada And Star Macarena [Member] Kamsarmax Vessels [Member] Star Elizabeth I [Member] Star Pavlina I [Member] Star Gamma And Star Anna [Member] Counterparty Name [Axis] CMBL [Member] Laura, Idee Fixe, Roberta, Kaley, Star Sirius and Star Vega [Member] New Yangzijiang [Member] Four Vessels [Member] Lender Name [Axis] DNB $310,000 Facility [Member] Laura, Idee Fixe, Roberta, Kaley, Diva, Star Sirius and Star Vega [Member] SK Shipholding S.A. [Member] Sinosure Credit Facility [Member] SPDB Financial Leasing Co. Ltd [Member] Mackenzie, Kennadi, Honey Badger, Wolverine and Star Antares [Member] ICBC Financial Leasing Co. Ltd [Member] Gargantua Goliath And Maharaj [Member] NIBC [Member] Ocean Trust Co. Ltd. [Member] Kyowa Sansho Co. Ltd. [Member] Kyowa Sansho Co. Ltd [Member] Delphin Scrubbers [Member] Financing Lease [Member] SEB $39,000 Facility [Member] NBG $125,000 Facility [Member] ING $210,600 Facility [Member] DNB $107,500 Facility [Member] Credit Agricole $43,000 Facility,Piraeus Bank $50,350 and Bank of Tokyo Facility [Member] ABN AMRO $97,150 Facility [Member] Citibank $130,000 Facility [Member] Credit Facility [Axis] Tranche A [Member] Tranche B [Member] Credit Agricole $62,000 Facility [Member] Alpha Bank $35,000 Facility and BNP Facility [Member] Attradius Facility [Member] First three installments [Member] Following seventeen installments [Member] HSBC Working Capital Facility [Member] DSF $55,000 Facility [Member] Tranche A and B [Member] Derivative Instrument [Axis] Interest Rate Swap [Member] ING $170,600 Facility [Member] First Two Tranches [Member] Additional Two Tranches [Member] Tranche E [Member] Tranche F [Member] Tranche E and F [Member] Final Two Tranches [Member] NTT Facility $17,600 [Member] CEXIM [Member] Remaining Two Tranches [Member] SEB Facility [Member] Debt Instrument, Redemption, Period [Axis] First 10 Quarters [Member] Remaining 14 Quarters [Member] Tranche C [Member] Tranche D [Member] Remaining two tranches [Member] E SUN Facility [Member] Atradius Facility [Member] Three Tranches [Member] Last Tranche [Member] Citibank $62,600 Facility [Member] CTBC Facility [Member] NTT Facility [Member] NIBC $32,000 Facility [Member] CEXIM $106,470 Facility [Member] HSBC $80,000 Facility [Member] HSH Nordbank $64,500 Facility and HSBC $86,600 Facility ABN $115,000 Facility [Member] Cash and Cash Equivalents [Axis] Not Legally Restricted [Member] Legally restricted [Member] Share Repurchase Program [Axis] Share Repurchase Program [Member] Sale of Stock [Axis] Open Market Transactions [Member] Private Transaction [Member] Star Marianne And Star Janni [Member] New Share Repurchase Program [Member] Eneti Warrant [Member] Eneti Warrant [Member] [Default Label] Secondary Offering [Member] Oaktree Capital Management L.P. [Member] Oaktree Capital Management L.P. [Member] [Default Label] Sales Agents [Member] Award Type [Axis] Restricted Stock Units (RSUs) [Member] Plan Name [Axis] 2019 Equity Incentive Plan [Member] Vesting [Axis] Vest in August 2022 [Member] 2020 Equity Incentive Plan [Member] Vest in May 2021 [Member] Vest in May 2023 [Member] Equity Incentive Plan 2021 [Member] Vest In September 2021 [Member] Vest In June 2022 [Member] Vest In June 2024 [Member] Share-based Payment Arrangement, Option [Member] Other Commitments [Axis] Future, minimum, non-cancellable charter revenue (1) [Member] Finite-Lived Intangible Assets by Major Class [Axis] Vessel BWTS (3) [Member] Liability Class [Axis] Commitments [Member] Time charters [Member] Voyage charters [Member] Pool adjustment [Member] Revenue Contracts [Member] Vessels Operating in CCL Pool [Member] Vessels Operating In Short Pool [Member] Vessels Operating With Other Parties [Member] ING [Member] Initial Notional [Member] Current Notional [Member] ING 2 [Member] ING 3 [Member] SEB [Member] Citi [Member] Citi 2 [Member] Citi 3 [Member] Citi 4 [Member] Citi 5 [Member] Citi 6 [Member] Citi 7 [Member] ING July 20 [Member] SEB 3 [Member] ABN [Member] NBG [Member] Forecast [Member] Forward Freight Agreements [Member] Bunker Swaps [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Hedging Designation [Axis] Not Designated as Hedging Instrument [Member] Financial Instrument [Axis] Derivative [Member] Fair Value, Inputs, Level 2 [Member] Designated as Hedging Instrument [Member] Measurement Frequency [Axis] Fair Value, Nonrecurring [Member] Vessels Net [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Entity Addresses [Table] Document Information [Line Items] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Contact Personnel Name ICFR Auditor Attestation Flag Auditor Firm ID Auditor Name Auditor Location Statement of Financial Position [Abstract] ASSETS CURRENT ASSETS Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash, current (Notes 7 and 17) Restricted Cash and Cash Equivalents, Current Restricted cash, current Trade accounts receivable, net Inventories (Note 4) Total Due from managers Due from related parties (Note 3) Due from related parties Prepaid expenses and other receivables Derivatives, current asset portion (Note 17) Derivative Asset, Current Other current assets (Note 15) Other Assets, Current Total Current Assets Assets, Current FIXED ASSETS Vessels and other fixed assets, net (Note 5) This element represents vessels and other fixed assets, net of accumulated depreciation. Total Fixed Assets Balance, period start Balance, period end Property, Plant and Equipment, Net OTHER NON-CURRENT ASSETS Long term investment (Note 3) Restricted cash, non-current (Notes 7 and 17) Operating leases, right-of-use assets (Note 2) Operating Lease, Right-of-Use Asset Derivatives, non-current asset portion (Note 17) Derivative Asset, Noncurrent Other non-current assets TOTAL ASSETS Assets LIABILITIES & SHAREHOLDERS' EQUITY CURRENT LIABILITIES Current portion of long-term bank loans (Note 7) Current portion of long term bank loans Lease financing short term (Note 6) Accounts payable Due to managers Due to related parties (Note 3) Due to related parties Accrued liabilities (Note 12) Total Accrued Liabilities Derivatives, current liability portion (Note 17) Derivative Liability, Current Derivatives, current liability portion Deferred revenue Deferred Revenue, Current Total Current Liabilities Liabilities, Current NON-CURRENT LIABILITIES 8.30% 2022 Notes, net of unamortized notes issuance costs of $768 as of December 31, 2020 (Note 7) 0 Long-term bank loans, net of current portion and unamortized loan issuance costs of $13,761 and $10,853, as of December 31, 2020 and 2021, respectively (Note 7) Long term bank loans, net of current portion and unamortized loan issuance costs Lease financing long term, net of unamortized lease issuance costs of $6,181 and $5,318, as of December 31, 2020 and 2021, respectively (Note 6) Derivatives, non-current liability portion (Note 17) Derivatives, non-current liability portion Fair value of below market time charters acquired Operating lease liabilities (Note 2) Operating Lease, Liability, Noncurrent Other non-current liabilities TOTAL LIABILITIES Liabilities COMMITMENTS & CONTINGENCIES (Note 14) SHAREHOLDERS' EQUITY Preferred Shares; $0.01 par value, authorized 25,000,000 shares; none issued or outstanding at December 31, 2020 and 2021, respectively (Note 8) Common Shares, $0.01 par value, 300,000,000 shares authorized; 97,146,687 shares issued and 97,139,716 shares (net of treasury shares) outstanding as of December 31, 2020; 102,294,758 shares issued and outstanding as of December 31, 2021 (Note 8) Additional paid in capital Treasury shares (6,971 and nil 0shares at December 31, 2020 and 2021, respectively) Treasury Stock, Value Accumulated other comprehensive income/(loss) Accumulated deficit Total Shareholders' Equity Beginning balance, value Ending balance, value Stockholders' Equity Attributable to Parent TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity Schedule of Long-term Debt Instruments [Table] Statement [Line Items] Debt Issuance Costs, Net Unamortized lease issuance costs Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par or Stated Value Per Share Common Shares - Par Value Common Stock, Shares Authorized Common Shares - Shares Authorized Common Stock, Shares, Issued Beginning balance, shares Ending balance, shares Common Stock, Shares, Outstanding Treasury Stock, Shares Income Statement [Abstract] Revenues: Voyage revenues (Note 15) Revenues Expenses Voyage expenses (Notes 3 and 16) Voyage expenses Total voyage expenses                              Costs relating to the voyages performed by the vessels and may include port, canal, bunker expenses, commissions and other. Charter-in hire expenses (Note 3) Charter - in hire expenses Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Vessel operating expenses (Note 16) Total vessel operating expenses             Dry docking expenses Depreciation (Note 5) - Depreciation for the period Management fees (Notes 3 and 9) Management fees Management fees General and administrative expenses (Note 3) General and administrative expenses Impairment loss (Notes 5 and 17) Impairment loss (Note 5) Asset Impairment Charges (Gain)/Loss on time charter agreement termination Gain (Loss) on Termination of Lease Other operational loss Other operational gain Other Nonrecurring Gain Provision for doubtful debts  Provision for doubtful debt (Gain)/Loss on forward freight agreements and bunker swaps, net (Note 17) Total Gain/(loss) recognized (Gain)/Loss on sale of vessels (Note 5) Loss / (gain) on sale of vessels (Note 5) Gain (Loss) on Disposition of Property Plant Equipment Total operating expenses Costs and Expenses Operating income / (loss) Operating Income (Loss) Other Income/ (Expenses): Interest and finance costs (Note 7) Interest and finance costs Interest Expense Interest and other income/(loss) Loss on debt extinguishment (Note 7) Loss on debt extinguishment (Note 7) Total other expenses, net Other Nonoperating Income (Expense) Income / (loss) before taxes and equity in income of investee Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income taxes (Note 13) Income tax Income Tax Expense (Benefit) Income/(Loss) before equity in income of investee Amount after tax of income (loss) from continuing operations before addition of income (loss) from equity method investments. IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments Equity in income / (loss) of investee Equity in income / (loss) of investee Net income/(loss)  Net income / (loss)  Net income / (loss) Earnings / (Loss) per share, basic  Basic earnings / (loss) per share Earnings / (Loss) per share, diluted Diluted earnings / (loss) per share Weighted average number of shares outstanding, basic (Note 11) Weighted average common shares outstanding, basic Weighted average number of shares outstanding, diluted  (Note 11) Weighted average common shares outstanding, diluted Other comprehensive income / (loss):  Unrealized gain / (loss) from hedging interest rate swaps recognized in Other comprehensive income/(loss) before reclassifications  Less:  Reclassification adjustments of interest rate swap gain/(loss)  Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss) OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax1 Other comprehensive income / (loss)  Other comprehensive income / (loss) Total comprehensive income / (loss)  Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement [Table] Offering expenses  Specific incremental costs directly attributable to a proposed or actual offering of securities. OfferingExpenses Cancellation of treasury stock (Note 8)  Cancellation of treasury stock (Note 8) Treasury Stock, Shares, Retired Issuance of vested and non-vested shares and amortization of share-based compensation (Note 10) Stock issued during period, share based compensation Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Issuance of vested and non-vested shares and amortization of share-based compensation (Note 10) The total value of vested and non-vested shares issued during the period and the total amount of stock based compensation amortized. IssuanceVestedNonVestedSharesAmortizationStockBasedCompensationValue Dividend declared and paid $0.05 and $0.05 per share in 2019 and 2020, respectively and dividend declared $2.25 per share in 2021 (Note 8) Dividends, Common Stock Acquisition of Vessel, value Treasury Stock, Value, Acquired, Cost Method Acquisition of vessels (Note 8) Acquisition of vessels (Note 8) Stock Issued During Period, Value, Acquisitions Purchase of treasury stock (Note 8) Shares cancelled Purchase of treasury stock (Note 8) Purchase of treasury stock Statement of Stockholders' Equity [Abstract] Common Stock, Dividends, Per Share, Declared Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities: Amortisation of fair value of above market time charters Amortisation of fair value of below market time charters Amortization of Below Market Lease Amortization of debt (loan, lease & notes) issuance costs (Note 7) Amortization of debt (loan, lease & notes) issuance costs Share-based compensation (Note 10) Share-based Payment Arrangement, Noncash Expense Change in fair value of forward freight derivatives and bunker swaps (Note 17) Unrealized Gain (Loss) on Derivatives Other non-cash charges Other Noncash Income (Expense) Gain on hull and machinery claims This element represents the gain arising from insurance claims. GainFromInsuranceClaim (Increase)/Decrease in: Trade accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid expenses and other receivables  Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Prepaid Expense and Other Assets Derivatives asset Increase (Decrease) in Derivative Assets Due from related parties Increase (Decrease) in Due from Related Parties, Current Due from managers Increase (Decrease) in Other Receivables Other non-current assets Increase (Decrease) in Other Noncurrent Assets Increase/(Decrease) in: Accounts payable Increase (Decrease) in Accounts Payable, Trade Due to related parties Accrued liabilities Due to managers Increase (Decrease) in Other Accounts Payable Deferred revenue Increase (Decrease) in Deferred Revenue Net cash provided by / (used in) Operating Activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities: Advances for vessels & vessel upgrades and other fixed assets Payments to Acquire Property, Plant, and Equipment Cash proceeds from vessel sales (Note 5) Hull and machinery insurance proceeds Net cash provided by / (used in) Investing Activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities: Proceeds from bank loans, leases and notes Loan and lease prepayments and repayments Repayment of debt Repayments of Debt Financing and debt extinguishment fees paid Payments of Financing Costs Dividends paid (Note 8) Payments of Ordinary Dividends, Common Stock Offering expenses paid related to the issuance of common stock Payments of Stock Issuance Costs Repurchase of common shares  Payments for Repurchase of Common Stock Net cash provided by / (used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Net increase/(decrease) in cash and cash equivalents and restricted cash  Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents and restricted cash at beginning of period Cash and cash equivalents and restricted cash at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents  Cash paid during the period for: Interest Non-cash investing and financing activities: Shares issued in connection with vessel acquisitions Vessel upgrades The amount of noncash investment for vessel upgrades. Assumed debt upon acquisition Right-of use assets and lease obligations for charter-in contracts Amount of lessee's right to use underlying asset under operating lease obligations. Dividends declared but not paid Non cash outflow in the form of dividends.Outstanding carrying value as of the balance sheet date of dividends declared but unpaid by the entity. Reconciliation of (a) cash and cash equivalents, and restricted cash reported within the consolidated balance sheets to (b) the total amount of such items reported in the statements of cash flows: Restricted cash, current (Note 7) Restricted cash, non-current (Note 7) Cash and cash equivalents and restricted cash at end of period shown in the statement of cash flows Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation and General Information Accounting Policies [Abstract] Significant Accounting policies Related Party Transactions [Abstract] Transactions with Related Parties Inventory Disclosure [Abstract] Inventories Property, Plant and Equipment [Abstract] Vessels and other fixed assets, net Lease Financing Lease financing Debt Disclosure [Abstract] Long-term bank loans Equity [Abstract] Preferred, Common Shares and Additional paid in capital Management Fees Management fees The entire disclosure for management fees. Share-based Payment Arrangement [Abstract] Equity Incentive Plans Earnings Per Share [Abstract] Earnings / (Loss) per share Payables and Accruals [Abstract] Accrued liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Income Tax Disclosure [Abstract] Income taxes Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Revenue from Contract with Customer [Abstract] Voyage revenues Voyage And Vessel Operating Expenses Voyage And Vessel Operating Expenses - Voyage Expenses Table Voyage And Vessel Operating Expenses - Vessel Operating Expenses Table Voyage and Vessel operating expenses The entire disclosure for Voyage expenses (Port charges, bunkers, commissions charged by third parties, commissions charged by related parties) and Vessel Operating expenses (crew wages and related costs, insurances, repairs, spares and maintenance, consumable stores, tonnage taxes, miscellaneous). Fair Value Disclosures [Abstract] Fair Value Measurements and Hedging Subsequent Events [Abstract] Subsequent Events Principles of consolidation Equity method investments Use of estimates Comprehensive income/(loss) Concentration of credit risk Foreign currency transactions Cash and cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Restricted cash Trade accounts receivable, net Receivable [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Vessels, net Advances for vessels under construction and acquisition of vessels Disclosure of accounting policy for advances for vessels under construction. Fair value of above/below market acquired time charters Impairment of long-lived assets Vessels held for sale Disclosure of accounting policy for vessels held for sale. Evaluation of purchase transactions Financing costs Share based compensation Dry docking and special survey expenses Disclosure of accounting policy for dry docking costs. Accounting for revenue and related expenses Disclosure of accounting policy regarding recognition of revenue and related expenses. Fair value measurement Earnings / (loss) per share Segment reporting Leases Derivatives & Hedging Taxation Offering costs Disclosure of accounting policy for offering costs that are expensed during the period or presented against paid-in capital. Share repurchases Basis of Presentation and General information - List of subsidiaries (Table) Tabular disclosure of the entity's subsidiaries. List of Non-vessel owning subsidiaries Basis of Presentation and General Information - Charter Revenue Percentage (Table) Significant Accounting policies - Operating Lease, Time Charter- in Payments (Table) Significant Accounting policies - Operating Lease, Payments for office rental (Table) Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Transactions with Related Parties - Balance Sheets (Table) Transactions with Related Parties - Statements of Operations (Table) Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. Inventories (Table) Vessels and other fixed assets net - Schedules of vessels and other fixed assets, net (Table) Lease financing - Capital lease obligations, Principal payments (Table) Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. Long-term bank loans - Principal repayments (Table) Long-term bank loans - Interest and finance costs (Table) Tabular disclosure of interest and finance costs. Equity Incentive Plans - Summary of non-vested restricted share options (Table) Equity Incentive Plans - Summary of non-vested share options (Table) Earnings / (Loss) per share (Table) Accrued liabilities (Table) Commitments and Contingencies - Charter party arrangements (Table) Commitments and Contingencies - Other commitments (Table) Voyage revenues (Table) Voyage and Vessel operating expenses - Voyage expenses (Table) Tabular disclosure for Voyage expenses (Port charges, bunkers, commissions charged by third parties, commissions charged by related parties). Voyage and Vessel operating expenses - Vessel operating expenses (Table) Tabular disclosure for Vessel Operating expenses (crew wages and related costs, insurances, repairs, spares and maintenance, consumable stores, tonnage taxes, miscellaneous). Fair Value Measurements and Hedging - Schedule of Derivative Instrument Fair Value Measurements and Hedging - Derivative instruments effect on statement of operations (Table) Fair Value Measurements and Hedging - Fair value on a recurring basis - Quoted Prices in Active Markets (Table) Fair Value Measurements and Hedging - Fair value on a recurring basis - Significant Other Observable Inputs (Table) Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Fair Value Measurements and Hedging - Fair value measurements on a nonrecurring basis (Table) Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] DWT The vessel's capacity in deadweight tonnage. Delivery Date The date of the vessel delivery to the Company. Year Built The year that the vessel was built. Concentration Risk [Line Items] Concentration Risk, Percentage For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Date of Incorporation Number of vessels owned Number of vessels owned by the Company. Vessel capacity The vessel's capacity in deadweight tonnage. December 31, 2022 December 31, 2023 December 31, 2024 December 31, 2025 December 31, 2026 December 31, 2027 and thereafter Total time charter-in payments Total office rent payments SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, by Property [Table] Depreciation method Useful life Salvage value per light weight ton The estimated vessels' salvage value per lightweight ton. Revenue recognition method A description of the revenue recognition method. Operating Lease, Weighted Average Discount Rate, Percent Lessee, Operating Lease, Description Operating lease expense recognition method A description of the operating lease expense recognition method. Operating Lease, Weighted Average Remaining Lease Term Operating lease expense Office rent Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Due from related parties Due to related parties Voyage revenues Related Party Transaction, Expenses from Transactions with Related Party Consultancy fees Consultancy fees The fees related to receiving management consultancy services during the reporting period. Consultancy fees [Default Label] Directors compensation Expenditures for compensation for non executive officers.Examples include, but not limited to, Board of Director's attendance fees. Business Acquisition, Percentage of Voting Interests Acquired Monthly lump sum fee Monthly lump fee payable to Interchart, as part of the Services Agreement for brokering and commercial services. Expiration date of agreement Consultancy fees The aggregate consultancy fees related to executive officers of the Company. Rent expense per month The monthly rent expense. Foreign Currency Exchange Rate, Translation Lease expiration date Date which lease or group of leases is set to expire, in YYYY-MM format. Lessee, Operating Lease, Term of Contract Number of directors The number of directors constituting the Board of Directors. Voting percentage Vessels acquired Number of vessels acquired Number of vessels acquired Ownership percentage Equity method investment Charter-in hire daily rate The gross daily charter-in rate. Charter-out hire daily rate The gross daily charter out rate. Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity Maturity date Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM format. Debt Conversion, Converted Instrument, Amount Lubricants Carrying amount as of the balance sheet date of lubricants' inventory. Bunkers Carrying amount as of the balance sheet date of bunker's inventory. Balance, period start Balance, period end Property, Plant and Equipment, Gross Balance, period start Balance, period end Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment - Acquisitions, improvements and other vessel costs Purchase price Debt Instrument, Collateral Amount Number of operating vessels acquired The number of operating vessels acquired by the Company. Number of shares issued as part of the consideration Class of Warrant or Right, Number of Securities Called by Warrants or Rights Exercise price Debt Instrument [Line Items] December 31, 2022 Long-Term Debt, Maturity, Year One December 31, 2023 Long-Term Debt, Maturity, Year Two December 31, 2024 Long-Term Debt, Maturity, Year Three December 31, 2025 Long-Term Debt, Maturity, Year Four December 31, 2026 Long-Term Debt, Maturity, Year Five December 31, 2027 and thereafter Long-Term Debt, Maturity, after Year Five Total bareboat lease minimum payments Total Long term bank loans Long-term Debt, Gross Loan's book value Total bareboat lease minimum payments, net Total Long term bank loans, net Lease financing short term Lease financing long term, net of unamortized lease issuance costs Finance Lease, Liability Finance lease payments per vessel The amount of cash outflow per vessel paid by the Company to the lessors as security for its obligations. Sale Leaseback Transaction, Gross Proceeds, Financing Activities Amount of cash inflow before closing and debt issuance costs received by a seller-lessee in a sale-leaseback recognized in financing activities. Repayment of lease liabilities Extinguishment of Debt, Amount Sale Leaseback Transaction, Lease Terms Vessel purchase price obligation Purchase price payable at the end of the bareboat charter. Number of repayment installments Number of repayment installments of a credit facility agreement. Frequency of periodic payment Debt Instrument, Frequency of Periodic Payment Debt instrument, prepayment amount Amount of debt prepaid. Unamortized loan issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Interest on financing agreements Less: Interest capitalized  Interest Costs Capitalized Adjustment Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other Comprehensive Income (Note 17) Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other comprehensive income/(loss) (Note 7) Other bank and finance charges  Other bank and financial services costs incurred during the reporting period. Line of Credit Facility [Table] Line of Credit Facility [Line Items] Line of Credit Facility, Initiation Date Amount drawn down Line of Credit Facility, Description Repayment installment Number of repayment installments of a credit facility agreement. Frequency of payments Line of Credit Facility, Periodic Payment Expiration date Date the credit facility terminates, in YYYY-MM format. Line of Credit Facility, Collateral Balloon installment Number of Loan Tranches The number of tranches under the credit facility. Debt Instrument, Description of Variable Rate Basis Debt Instrument, Interest Rate, Stated Percentage Derivative, Term of Contract Derivative, Description of Terms Line of Credit Facility, Increase (Decrease), Net Number of vessels financed by debt instrument The number of vessels financed by the debt instrument. Debt Instrument, Face Amount Debt Instrument, Maturity Date Debt Instrument, Redemption Price, Percentage Debt Instrument, Covenant Compliance Long-term Debt, Weighted Average Interest Rate, at Point in Time Debt Instrument, Unused Borrowing Capacity, Fee Write off of Deferred Debt Issuance Cost Expenses on debt prepayments The amount of expenses relate to long-term debt prepaymets. ExpensesOnDebtPrepayments Gain amount from valuation instrument The amount representing the valuation of the interest rate swaps on the termination date, received by the company Gain on hedging instrument The amount representing the cumulative gain on the hedging instrument on the de-designation date. Accumulated Other Comprehensive Income (Loss) [Table] Stock repurchase program, authorized amount Common shares repurchased Common shares repurchased, Average price per Share Cash dividend Dividend per share Number of shares sold Number of shares sold as part of secondary offering. Price per share, sold Number of offering programs Offering price per program Payments of dividends outstanding The amount of cash dividends outstanding. Unvested at beginning of period Unvested at end of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unvested at beginning of period Unvested at end of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted Number of shares granted Granted Grant date fair value Vested Number of shares vested during the period Vested Number of options - balance Weighted average exercise price - balance Weighted Average Grant Date Fair Value - balance Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Total shares authorized Number of tranches Number of tranches for issuance of restricted shares. Restricted common shares expected to vest Vesting rights Fleet performance indices The amount that indicates the Company's fleet performance. Vesting Date RSUs shares The number of equity-based payment instruments, excluding stock (or unit) options, that are subject to vest. Amortization expense for RSUs expected to vest Amortization expense reversed, included in General and administrative expenses Reversed amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Cumulative Bunker Saving threshold The cumulative Bunker Saving, above which the Board of Directors will award to key employees. Award percentage Percentage of annual Bunker Benefit, the value of which will be awarded as share-based payment arrangement. Shares reserved for issuance Dividend, Share-based Payment Arrangement, Cash Number of options granted Option exercise price Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Weighted average remaining term for non-vested restricted share awards Total fair value of shares vested during the period Dillutive effect of non vested shares Number of anti-dilutive shares Audit fees Carrying value as of the balance sheet date of obligations incurred through that date and payable for accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Legal fees Carrying value as of the balance sheet date of obligations incurred through that date and payable for legal services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Other professional fees Carrying value as of the balance sheet date of obligations incurred through that date and payable for other professional fees, excluding legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Vessel Operating and voyage expenses Carrying value as of the balance sheet date of obligations incurred through that date and payable for operating and voyage expenses. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Loan and interest rate swaps interest and financing fees Carrying value as of the balance sheet date of obligations incurred through that date and payable for loan interest and financing fees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Income tax Tonnage taxes Tonnage taxes (Note 13) The tonnage taxes for the period. Other Commitments [Table] Other Commitments [Line Items] Total Total Future minimum rental payments in aggregate as of the balance sheet date under operating leases. 2022 2022 Future rental payments receivable within one year of the balance sheet date under an operating lease. Total Total Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. ContractualObligation1 2022 2022 Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. ContractualObligationDueInNextTwelveMonths1 2023 Future rental payments receivable within the second year from the balance sheet date under an operating lease. OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears1 2024 Future rental payments receivable within the third year from the balance sheet date under an operating lease. OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears1 2023 Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. ContractualObligationDueInSecondYear1 2024 Amount of contractual obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. ContractualObligationDueInThirdYear1 Revenues from External Customers and Long-Lived Assets [Line Items] Voyage revenues Revenues arising from services provided to charterers according to the terms and conditions included in charter agreements. Voyage revenues may include the amortization of above/below market acquired time charter. Voyage revenues [Default Label] Gross trade accounts receivable Gross amount of trade accounts receivable, excluding the provision for doubtful debt. Sublease Income Port charges                                                Amounts charged by port authorities for the use of infrastructure. Bunkers Fuel Costs Commissions – third parties Commissions – related parties (Note 3) Miscellaneous Crew wages and related costs                    Insurances Maintenance, repairs, spares and stores Lubricants The cost of lubricants consumed during the period. LubricantsExpense Pre-delivery and Pre-joining expenses The pre-delivery and pre-joining expenses incurred during the period. Miscellaneous Other Cost and Expense, Operating Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Inception Expiry Fixed Rate Notional amount Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Interest and finance costs Total Gain/(loss) recognized  The aggregate net effect in earnings due to derivatives. GainLossOnDerivativeInstrumentsAggregateNetEffectInEarnings Gain/(loss) on forward freight agreements and bunker swaps, net Realized gain/(loss) on forward freight agreements and freight options The realized gain / (loss) of forward freight agreements, held at each balance sheet date, that was included in earnings for the period. Realized gain/(loss) on bunker swaps The realized gain / (loss) of bunker swaps agreements, held at each balance sheet date, that was included in earnings for the period. Unrealized gain/(loss) on forward freight agreements and freight options 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. Unrealized gain/(loss) on bunker swaps 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. Fair Value, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivative Asset Total LIABILITIES Derivative Liability Total Property, Plant, and Equipment, Fair Value Disclosure Impairment, Long-Lived Asset, Held-for-Use Schedule of Fair Value, Off-balance Sheet Risks [Table] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion Debt Instrument, Fair Value Disclosure Difference between book and fair value The difference between the book and the fair value of the debt instrument payable. Subsequent Event [Table] Subsequent Event [Line Items] Dividends Payable, Date Declared Dividends Payable, Amount Per Share Dividends Payable, Date to be Paid Dividends Payable, Date of Record Noncash effects of derivative financial instruments. The fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Volume measured in metric tons. The fixed bunker spread price under a bunker swap agreement. Fair value as of the balance sheet date of bunker swaps derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. Nominal or face amount used to calculate payment on derivative. Amount of borrowing capacity currently available under the transaction involving the sale of property to another party and the lease of the property back to the seller. Amount of decrease in accumulated depreciation, depletion and amortization as a result of impairment of property, plant and equipment. Amount of fee for early prepayment of finance lease. The entire disclosure for the asset or liability arising from the market value of the time charter assumed from a vessel acquisition or redelivery upon a time charter agreement termination. Amount of interest expense on debt and finance lease liabilities. Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. The total financing that the company has secured under loan and lease agreements, in order to pay future commitments. The proceeds from the financing premia refund. Specific incremental costs directly attributable to a proposed or actual secondary offering of securities. The entire disclosure for advances paid to yards and capitalized expenses for acquisition of vessels. OtherOperationalGainTextBlock Tabular disclosure for advances paid to yard and capitalized expenses for the acquisition of vessels. The size of the vessel. Amount of gain (loss) included in earnings for the period from the settlement of interest rate derivatives not designated as hedging instruments. The amount of maintenance expenses for vessel scrubbers and BWTS incurred during the period. The number of equity-based payment instruments, excluding stock (or unit) options, that are expected to vest. Brokerage Commissions on contracted Charter Revenues. The gross daily charter rate. The percentage of coverage through foreign currency hedging. The scrap value of vessels per light weight ton (LWT). Amount of acquired leases at above market lease rate with a finite life. The amount that indicates the cumulative Bunker Saving. Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller.