Net Loss Per Share - Reconciliation for EPS Calculations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Numerator:
Net loss attributable to Innventure, Inc., shareholders	$ (142,997)	$ (5,219)
Less: Cumulative earnings to participating securities	259
Undistributed loss for participating securities	(143,256)
Less: Undistributed loss attributable to participating securities	0
Net Loss attributable to common shareholders, basic	(143,256)
Net Loss attributable to common shareholders, diluted	$ (143,256)
Denominator:
Weighted average number of units outstanding, basic (in shares)	46,252,922
Weighted average number of units outstanding, diluted (in shares)	46,252,922
Net loss per share attributable to common shareholders, basic (in usd per share)	$ (3.10)
Net loss per share attributable to common shareholders, diluted (in usd per share)	$ (3.10)