Earnout Shares	12 Months Ended
Earnout Shares	Dec. 31, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Earnout Shares	Note 10. Earnout Shares Upon Closing of the Business Combination, 5,000,000 Company Earnout Shares were contingently issuable to Innventure Members. Additionally, 344,828 earnout shares were issued to the Sponsor who received consideration in the Business Combination. These shares, referred to as "Sponsor Earnout Shares," are subject to clawback. The Company Earnout Shares and the Sponsor Earnout Shares are collectively referred to as the “Earnout Shares”. The Earnout Shares will vest upon the following milestone conditions: •40% of the Earnout Shares will vest upon Accelsius having entered into binding contracts providing for revenue for the Company (as defined in the Business Combination Agreement) within 7 years following the Closing (the “Vesting Period”) in excess of $15.0 million in revenue ("Milestone One"); •40% of the Earnout Shares will vest upon the Company’s formation of a new subsidiary, in partnership with an MNC, as determined using the Innventure LLC's “DownSelect” process, within the Vesting Period ("Milestone Two"); and •20% of the Earnout Shares will vest upon AeroFlexx having received in excess of $15.0 million in revenue within the Vesting Period ("Milestone Three"). The Sponsor Earnout Shares have a vesting provision that occurs upon a change of control event or upon the occurrence of the VWAP of the shares of Innventure, Inc. Common Stock exceeding $11.50 per share for at least twenty days in any immediately preceding thirty day period (the "VWAP Completion Event"). These vesting conditions are not effective on the Company Earnout shares until 6 months following the Business Combination. The Earnout Shares related to Milestone One and Milestone Two were determined to be classified as equity. At Closing, 4,275,862 equity-classified Earnout Shares were fair valued at $46.4 million, inclusive of 2,137,931 Milestone One shares fair valued at $23.2 million and 2,137,931 Milestone Two shares fair valued at $23.2 million which are presented in Additional paid-in capital on the consolidated balance sheets at December 31, 2024. On January 7, 2025, a total of 344,828 Sponsor Earnout Shares fully vested and were no longer subject to contingencies as the Company’s public stock price had surpassed $11.50 for twenty consecutive days, thereby fulfilling the vesting provision for the Sponsor Earnout Shares. These vesting conditions were not effective on the Company Earnout Shares until 6 months following the Business Combination. On January 8, 2025, the Company’s Board of Directors formally recognized the creation of the Refinity subsidiary, thereby meeting the Milestone Two conditions for the Company Earnout Shares. As such, 2,000,000 shares of Common Stock were issued on February 4, 2025 as a result of the satisfaction of the respective milestone. The Earnout Shares related to Milestone Three are classified as a liability. There were 1,000,000 and 1,068,966 liability-classified Earnout Shares fair valued at $3.9 million and $14.8 million as of December 31, 2025 and 2024, respectively. The Company recognized losses of $10.0 million and $3.4 million in Change in fair value of financial liabilities on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2025 and for the successor period October 2, 2024 through December 31, 2024, respectively.