v3.26.3
STOCKHOLDERS' DEFICIT - Awards granted (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 24, 2026
shares
Feb. 19, 2026
USD ($)
shares
Feb. 19, 2025
shares
Sep. 30, 2026
USD ($)
item
tranche
Mar. 31, 2026
shares
Sep. 30, 2025
USD ($)
Mar. 31, 2025
shares
Sep. 30, 2026
USD ($)
item
tranche
shares
Sep. 30, 2025
USD ($)
Sep. 23, 2026
shares
STOCKHOLDERS' EQUITY                    
Stock-based compensation expense | $       $ 20.7   $ 6.0   $ 31.3 $ 17.7  
Board of Director                    
STOCKHOLDERS' EQUITY                    
Stock-based compensation expense | $               $ 1.1 1.3  
RSU and PSU Units                    
STOCKHOLDERS' EQUITY                    
Retirement age               65 years    
Service period               10 years    
Restricted stock unit                    
STOCKHOLDERS' EQUITY                    
Shares vested               942,900    
Stock-based compensation expense | $       $ 11.0   $ 3.6   $ 13.9 9.8  
Performance Vesting                    
STOCKHOLDERS' EQUITY                    
Number of days from the termination of service for settlement of fully vested units               30 days    
Shares vested               119,307    
Performance Vesting | Members of management and executive officers                    
STOCKHOLDERS' EQUITY                    
Number of tranches | tranche       3       3    
Number of performance targets | item       4       4    
Performance Vesting | Members of management and executive officers | Minimum                    
STOCKHOLDERS' EQUITY                    
PSUs vesting as a percentage of performance target               80.00%    
Percentage of performance target               50.00%    
Performance Vesting | Members of management and executive officers | Maximum                    
STOCKHOLDERS' EQUITY                    
PSUs vesting as a percentage of performance target               120.00%    
Percentage of performance target               200.00%    
Special award                    
STOCKHOLDERS' EQUITY                    
Expected performance target to be achieved (as a percent)   200.00% 146.00%              
Shares vested   3,778,642 270,093              
Stock-based compensation expense | $               $ 4.6 $ 1.0  
Cash settled units                    
STOCKHOLDERS' EQUITY                    
Shares vested     4,181              
Equity settled units                    
STOCKHOLDERS' EQUITY                    
Shares vested     265,912              
2024 Equity Incentive Plan                    
STOCKHOLDERS' EQUITY                    
Number of shares authorized 50,000,000                 25,000,000
Conversion ratio of share based payment awards into common stock   1                
Number of additional shares authorized 25,000,000                  
2024 Equity Incentive Plan | Restricted stock unit | Members of management                    
STOCKHOLDERS' EQUITY                    
Vesting period (in years)               3 years    
Vesting rights percentage               33.00%    
Number of days from the termination of service for settlement of fully vested units               30 days    
Chief Financial Officer | 2026 Performance share award | Members of management and executive officers | Minimum                    
STOCKHOLDERS' EQUITY                    
Percentage of performance target               80.00%    
Number of strategic initiatives vesting of second tranche | item               2    
Chief Financial Officer | 2026 Performance share award | Members of management and executive officers | Maximum                    
STOCKHOLDERS' EQUITY                    
Percentage of performance target               200.00%    
Number of strategic initiatives vesting of second tranche | item               4    
Chief Executive Officer | 2026 Performance share award | Members of management and executive officers | Minimum                    
STOCKHOLDERS' EQUITY                    
Percentage of performance target               50.00%    
Number of strategic initiatives vesting of second tranche | item               4    
Chief Executive Officer | 2026 Performance share award | Members of management and executive officers | Maximum                    
STOCKHOLDERS' EQUITY                    
Percentage of performance target               200.00%    
Number of strategic initiatives vesting of second tranche | item               10    
Class A common stock | Board of Director                    
STOCKHOLDERS' EQUITY                    
Shares awarded   869,571     869,571   370,586      
Grant date fair value (in dollars) | $   $ 1.1