v3.25.3
Stockholders' Equity (FY) (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 18 Months Ended
Dec. 30, 2024
USD ($)
shares
Dec. 24, 2024
USD ($)
shares
Oct. 22, 2024
USD ($)
$ / shares
shares
Oct. 02, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Oct. 31, 2023
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
vote
$ / shares
shares
Dec. 31, 2024
USD ($)
day
vote
$ / shares
shares
Jun. 30, 2025
USD ($)
vote
$ / shares
shares
Dec. 31, 2024
USD ($)
day
vote
$ / shares
shares
Mar. 24, 2025
shares
Oct. 01, 2024
$ / shares
shares
Class of Stock [Line Items]                        
Preferred stock, authorized (in shares)             25,000,000 25,000,000 25,000,000 25,000,000   25,000,000
Preferred stock, par value (in usd per share) | $ / shares             $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001   $ 0.0001
Obligation to issue equity | $         $ 0   $ 52 $ 4,158 $ 52 $ 4,158    
Common stock, authorized (in shares)             250,000,000 250,000,000 250,000,000 250,000,000   250,000,000
Common stock, par value (in usd per share) | $ / shares             $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001   $ 0.0001
Number of votes per share | vote             1 1 1 1    
Common stock, issued (in shares)             55,221,494 44,597,154 55,221,494 44,597,154   43,589,850
Common stock, outstanding (in shares)             55,221,494 44,597,154 55,221,494 44,597,154   43,589,850
Financial advisory services, cash success fee | $           $ 600            
Innventure LLC                        
Class of Stock [Line Items]                        
Contingent consideration (in shares)                       5,000,000
Sponsor                        
Class of Stock [Line Items]                        
Stock issued under Sponsor Support Agreement (in shares)       5,000,000                
Stock issued (in shares)       2,775,172                
Stock issued, subject to forfeiture (in shares)       1,880,000                
Stock subject to forfeiture (in shares)               587,995   587,995    
Stock not subject to forfeiture (in shares)               1,292,005   1,292,005    
Sponsor | Innventure LLC                        
Class of Stock [Line Items]                        
Contingent consideration (in shares)                       344,828
Financial Advisor                        
Class of Stock [Line Items]                        
Stock issued for services | $         $ 441              
Stock issued for services (in usd per share) | $ / shares         $ 10.87              
Stock issued for services (in shares)         40,552              
WTI Lender                        
Class of Stock [Line Items]                        
Right to sell common stock, stock price, daily volume weighted average price, period     5 days                  
Stock issued for services | $     $ 500                  
Stock issued for services (in usd per share) | $ / shares     $ 11.13                  
Stock issued for services (in shares)     44,919                  
Standby Equity Purchase Agreement                        
Class of Stock [Line Items]                        
Stock issuance (in shares) 75,000 60,000         0   73,993 135,000    
Amount received from stock issuance | $ $ 965 $ 770         $ 0   $ 931 $ 1,735    
Common stock, par value (in usd per share) | $ / shares           $ 0.0001            
Right to sell common stock, maximum amount | $           $ 75,000            
Right to sell common stock, term           3 years            
Right to sell common stock, structuring fee | $           $ 25            
Right to sell common stock, commitment fee | $           375            
Right to sell common stock, advance amount | $           $ 10,000            
Right to sell common stock, trading day period           5 days            
Right to sell common stock, stock price, percent of daily volume weighted average price           95.00%            
Right to sell common stock, stock price, percent of lowest daily volume weighted average price           97.00%            
Right to sell common stock, stock price, lowest daily volume weighted average price, period           3 days            
Series B preferred shares                        
Class of Stock [Line Items]                        
Preferred stock, authorized (in shares)             3,000,000 3,000,000 3,000,000 3,000,000   3,000,000
Preferred stock, par value (in usd per share) | $ / shares             $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001    
Stock issuance (in shares)       1,102,000                
Stock issuance price (in usd per share) | $ / shares                       $ 10
Amount received from stock issuance | $       $ 11,020                
Preferred stock, mandatory conversion, term                   5 years    
Preferred stock, conversion rate, numerator (in usd per share) | $ / shares               10   $ 10    
Preferred stock, conversion rate, denominator (in usd per share) | $ / shares               12.5   12.5    
Preferred stock, conversion rate, reset conversion price (in usd per share) | $ / shares               $ 5   $ 5    
Preferred stock, conversion rate, reset conversion price, volume weighted average price, number of consecutive trading days | day               10   10    
Voting, number of votes, numerator for calculation (in usd per share) | $ / shares               $ 10   $ 10    
Voting power limit percentage               19.99%   19.99%    
Preferred stock dividend percentage               8.00% 8.00%      
Preferred stock, original issue price (in usd per share) | $ / shares               $ 10   $ 10    
Obligation to issue equity | $             $ 20 $ 217 $ 20 $ 217    
Series C Preferred Stock                        
Class of Stock [Line Items]                        
Preferred stock, authorized (in shares)             5,000,000 5,000,000 5,000,000 5,000,000    
Preferred stock, par value (in usd per share) | $ / shares           $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001    
Preferred stock dividend percentage                 8.00%      
Preferred stock, original issue price (in usd per share) | $ / shares           $ 10            
Obligation to issue equity | $             $ 32   $ 32      
Stock issued for services (in shares)                     300,000  
Financial advisory services, equity success fee | $           $ 3,000            
Financial advisory services, stock issuable (in shares)               300,000   300,000