v3.25.3
Stock-based Compensation - Narrative (FY) (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jun. 25, 2025
USD ($)
shares
Feb. 26, 2025
$ / shares
shares
Dec. 31, 2024
USD ($)
extension_option
$ / shares
shares
Dec. 09, 2024
USD ($)
$ / shares
shares
Oct. 18, 2024
USD ($)
shares
Oct. 02, 2024
USD ($)
shares
Mar. 31, 2023
shares
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
shares
Oct. 01, 2024
USD ($)
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Accelerated vesting (in shares) | shares           203,651                  
Accelerated vesting expense           $ 223                  
Stock options granted (in shares) | shares   140,000   975,409                      
Stock options granted, exercise price (in usd per share) | $ / shares   $ 8.84   $ 12.2                      
Compensation expense remaining to be recognized, stock options     $ 6,063         $ 4,217 $ 6,063   $ 4,217     $ 6,063  
Discount percent for lack of marketability                           20.00%  
Accelsius Holdings LLC                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Compensation expense         $ 616                    
Discount percent for lack of marketability         20.00%                    
Shares issued for stock based payment (in shares) | shares         16,427                    
RSUs                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Awards granted (in shares) | shares 111,525                            
Compensation expense               6,979 1,604   10,895        
Compensation expense remaining to be recognized, awards excluding stock options     $ 23,241         12,946 $ 23,241   $ 12,946     $ 23,241  
Compensation expense remaining to be recognized, period                 1 year 7 months 24 days   1 year 4 months 24 days        
Grant date fair value $ 600                            
Stock options                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Compensation expense               1,515 $ 405   $ 2,541        
Compensation expense remaining to be recognized, period                 1 year 8 months 4 days   1 year 7 months 6 days        
Grant date fair value       $ 6,468                      
Expected volatility rate   56.00%   56.00%                      
Expected term   5 years 10 months 24 days                          
Risk-free rate of return, minimum       4.00%                      
Risk-free rate of return, maximum       4.10%                      
Expiration period (in years)       10 years             10 years        
Risk-free rate of return   4.06%                          
Stock options | Minimum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Expected term       5 years 3 months 10 days                      
Stock options | Maximum                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Expected term       5 years 7 months 13 days                      
SARs                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Awards granted (in shares) | shares                           30,000  
Compensation expense               $ (244)     $ (693)        
Expected volatility rate                     80.00%        
Expected term                     1 year 6 months        
Base price for awards (in usd per share) | $ / shares     $ 12.175           $ 12.175         $ 12.175  
Risk-free rate of return                     4.00%        
SARs | Accelsius Holdings LLC                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Awards granted (in shares) | shares     350,000                        
Compensation expense                 $ 13,531            
Expected volatility rate     70.00%                        
Expected term     2 years                        
Base price for awards (in usd per share) | $ / shares     $ 12.175           $ 12.175         $ 12.175  
Award vesting period     2 years                        
Risk-free rate of return     4.00%                        
Cash-settled SARs | Accelsius Holdings LLC                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Grant date fair value     $ 1,160                        
Number of participants receiving grants (in shares) | extension_option     2                        
Stock-settled SARs | Accelsius Holdings LLC                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Grant date fair value     $ 12,371                        
Number of participants receiving grants (in shares) | extension_option     3                        
Capital Incentive Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of shares available for grant (in shares) | shares                         1,585,125    
Compensation expense                 $ 0       $ 137   $ 205
2024 Equity and Incentive Compensation Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Number of shares available for grant (in shares) | shares                         11,022,894    
Share limit increase percentage           3.00%                  
Stock options granted (in shares) | shares       975,409                      
2024 Equity and Incentive Compensation Plan | RSUs                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Awards granted (in shares) | shares       2,036,476                      
Accelcius Subsidiary Equity Plan                              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                              
Awards granted (in shares) | shares             3,300,000 133,000   0 133,000 110,000      
Shares issued in period (in shares) | shares                 168,500       110,000   365,500
Compensation expense               $ 912 $ 1,341 $ 248 $ 1,810 $ 593 $ 918   $ 705
Compensation expense remaining to be recognized, awards excluding stock options     $ 8,103         $ 8,457 $ 8,103   $ 8,457     $ 8,103  
Compensation expense remaining to be recognized, period                 2 years 5 months 1 day   2 years 2 months 15 days