Business Segment Data - Technology Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenue	$ 224	$ 224
Interest income	224	86
Cost of sales	184	0
General and administrative	19,676	7,904
Research and development	6,253	1,669
Sales and marketing	2,096	1,183
Interest expense	1,762	491
Income tax benefit	(1,399)	0
Goodwill impairment	233,213	0
Other	(21)	0
Net Loss Attributable to Innventure, Inc. Stockholders / Innventure LLC Unitholders	(142,997)	(5,219)
Technology
Segment Reporting Information [Line Items]
Revenue	1	0
Interest income	4	0
Cost of sales	184	0
Employee costs	4,287	2,629
Facilities, equipment & supplies	381	218
General and administrative	2,395	142
Outside services	308	237
Research and development	4,345	653
Sales and marketing	284	164
Depreciation expense	145	6
Interest expense	127	436
Income tax benefit	(1,459)	0
Goodwill impairment	233,213	0
Other	104	1,644
Total Operating Expenses	244,314	6,129
Net Loss Attributable to Innventure, Inc. Stockholders / Innventure LLC Unitholders	$ (244,309)	$ (6,129)