v3.26.3
FAIR VALUE MEASUREMENTS - Fair value on a recurring basis (Details) - 6.00%/8.00% Cash/PIK Toggle Senior Secured Exchangeable Notes due 2030 - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Jul. 01, 2025
Corporate Borrowings:        
Interest rate cash (as a percent) 6.00% 6.00% 6.00%  
PIK interest rate (as a percent) 8.00% 8.00% 8.00%  
Bifurcated embedded derivative $ 21.7   $ 12.6 $ 88.3
Total Carrying Value        
Corporate Borrowings:        
Bifurcated embedded derivative 21.7      
Recurring basis | Significant unobservable inputs (Level 3)        
Corporate Borrowings:        
Bifurcated embedded derivative $ 21.7