v3.25.3
LONG-TERM DEBT - Schedule Long-term Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Debt Instrument [Line Items]      
Total principal amount $ 220.3 $ 267.4  
Less: unamortized debt discount and issuance costs (12.8) (16.3)  
Total long-term debt 207.5 251.1  
Less: current portion of long-term debt (0.4) (39.1)  
Long-term debt, net of current portion 207.1 212.0  
Term Loan Credit Agreement      
Debt Instrument [Line Items]      
Total principal amount $ 209.1 227.1  
Interest rate 6.75%    
Long-term debt, fair value $ 222.3 243.8  
Subordinated Loans      
Debt Instrument [Line Items]      
Total principal amount 10.0 0.0  
Long-term debt, fair value 8.6    
6.75% convertible senior notes      
Debt Instrument [Line Items]      
Total principal amount $ 0.0 $ 38.8  
Interest rate 6.75% 6.75% 6.75%
Fleet notes and other      
Debt Instrument [Line Items]      
Total principal amount $ 1.2 $ 1.5