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Stockholders / Innventure LLC Unitholders Net loss Net loss attributable to Innventure, Inc., shareholders Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Transfer of Series C Preferred Stock from Mezzanine equity to Stockholders' equity Temporary Equity, Value, Conversion Of Convertible Securities Temporary Equity, Value, Conversion Of Convertible Securities Construction in progress Construction in Progress [Member] Reclassification of realized gain on conversion of available for sale investments Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Investment Transferred from Available-for-Sale to Equity Method, after Tax Accrued expenses Other Accrued Liabilities, Current Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenue risk premium Measurement Input, Revenue Risk Premium [Member] Measurement Input, Revenue Risk Premium Preferred Stock, authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Conversion of loans to investments (in usd per share) Transfer To Investments, Price Transfer To Investments, Price Term Measurement Input, Expected Term [Member] Customer relationships Customer Relationships [Member] Loss from Operations Operating Income (Loss) Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit) Related Party Term Convertible Notes Related Party Term Convertible Notes [Member] Related Party Term Convertible Notes Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Revenue volatility Measurement Input, Revenue Volatility [Member] Measurement Input, Revenue Volatility Class of Stock [Axis] Class of Stock [Axis] Error correction out of period adjustment Revision of Prior Period, Error Correction, Adjustment [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Stock-based compensation liability Deferred Compensation Share-Based Arrangements, Liability, Classified, Noncurrent 2029 Contractual Obligation, to be Paid, Year Four Miscellaneous other expense Other Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Stock-based compensation liability Increase (Decrease) in Deferred Compensation Deferred income taxes Deferred Income Tax Expense (Benefit) Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash Flows Provided by Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Risk-free rate Measurement Input, Risk Free Interest Rate [Member] Notes payable, net of current portion Other Notes Payable, Noncurrent Conversion price, percentage of funding round price Debt Instrument, Convertible, Conversion Price, Percentage Of Funding Round Price Debt Instrument, Convertible, Conversion Price, Percentage Of Funding Round Price Series C Preferred Stock, $0.0001 par value, 5,000,000 shares designated, 150,000 and — shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively Series C Preferred Stock Series C Preferred Stock [Member] Cash amount warrants may be exchanged for Class Of Warrant Or Rights, Put Price Class Of Warrant Or Rights, Put Price Schedule of Changes in Fair Value of Level 3 Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Sale of stock, price (in usd per share) Sale of Stock, Price Per Share Number of units available to be issued under stock-based compensation plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Raw materials Inventory, Raw Materials, Net of Reserves Basic weighted average common shares (in shares) Weighted average number of units outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Warrant liability Warrants and Rights Outstanding Schedule of Reconciliation for EPS Calculations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Related Party Transaction [Domain] Related Party Transaction [Domain] Private placement warrants Private Warrants Private Placement Warrants [Member] Warrants issued in connection with the Initial Public Offering. Each whole Warrant exercisable one Class A ordinary Share at an exercise price of $11.50. Subsequent Events [Abstract] Segment Reporting [Abstract] Debt Disclosure [Abstract] Non-operating (Expense) and Income Nonoperating Income (Expense) [Abstract] Undistributed loss for participating securities Undistributed Earnings (Loss) Available to Common Shareholders, Basic Issuance of stock in exchange for services Issuance of Stock and Warrants for Services or Claims Less: unamortized debt discount Debt Instrument, Unamortized Discount Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common Stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Stock options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Unrealized gain on investments in debt Securities - related party through OCI Debt Securities, Available-for-Sale, Unrealized Gain (Loss) Settlement and derecognitions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Principal amount due Debt Instrument, Periodic Payment, Principal, Payable Debt Instrument, Periodic Payment, Principal, Payable Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Issued (in shares) Class of Warrant or Right, Issued Number of warrants or rights issued during the period. Total Liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Class B-1 Preferred Preferred Class B-1 [Member] Preferred Class B-1 Settlement and derecognitions Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Liability for future stock issuance Increase (Decrease) In Preferred Stock Issuance Liability Increase (Decrease) In Preferred Stock Issuance Liability Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Issuance of preferred units, net of issuance costs Issuance of common shares, net of issuance costs Stock Issued During Period, Value, New Issues Consolidation Items [Axis] Consolidation Items [Axis] Counterparty Name [Axis] Counterparty Name [Axis] Investment in debt securities - AFS Investment in debt security - AFS Debt Securities, Available-for-Sale Payment of patent installment Payment Of Patent Installment Payment Of Patent Installment Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Convertible debentures Convertible Debentures [Member] Convertible Debentures