Fair Value - Fair Value Hierarchy for Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Assets:
Investment in debt security - AFS	$ 9,426	$ 9,246
Liabilities:
Earnout liability	3,470	3,890
Warrant liability	27,815	27,458
2024 WTI Warrant liability
Liabilities:
Warrant liability	13,040	13,080
2025 WTI Warrant liability
Liabilities:
Warrant liability	3,100	3,230
Private placement warrants
Liabilities:
Warrant liability	11,675	11,148
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Investment in debt security - AFS	0	0
Liabilities:
Earnout liability	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| 2024 WTI Warrant liability
Liabilities:
Warrant liability	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| 2025 WTI Warrant liability
Liabilities:
Warrant liability	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Private placement warrants
Liabilities:
Warrant liability	0	0
Significant Other Observable Inputs (Level 2)
Assets:
Investment in debt security - AFS	0	0
Liabilities:
Earnout liability	0	0
Significant Other Observable Inputs (Level 2) \| 2024 WTI Warrant liability
Liabilities:
Warrant liability	0	0
Significant Other Observable Inputs (Level 2) \| 2025 WTI Warrant liability
Liabilities:
Warrant liability	0	0
Significant Other Observable Inputs (Level 2) \| Private placement warrants
Liabilities:
Warrant liability	11,675	11,148
Significant Unobservable Inputs (Level 3)
Assets:
Investment in debt security - AFS	9,426	9,246
Liabilities:
Earnout liability	3,470	3,890
Significant Unobservable Inputs (Level 3) \| 2024 WTI Warrant liability
Liabilities:
Warrant liability	13,040	13,080
Significant Unobservable Inputs (Level 3) \| 2025 WTI Warrant liability
Liabilities:
Warrant liability	3,100	3,230
Significant Unobservable Inputs (Level 3) \| Private placement warrants
Liabilities:
Warrant liability	$ 0	$ 0

Innventure, Inc. 10-Q