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Borrowings - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
May 03, 2021
Mar. 04, 2021
Dec. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]        
Covenant liquidity requirement     $ 115.3  
Senior Notes     595.8 $ 599.6
Minimum        
Line of Credit Facility [Line Items]        
Debt covenant, required consolidated tangible net worth     300.0  
Covenant liquidity requirement     75.0  
7.875% Senior Notes, Due 2026        
Line of Credit Facility [Line Items]        
Debt instrument stated percentage of interest (percentage)   7.875%    
Loss on extinguishment of debt     1.3 0.9
Unamortized discount   $ (2.1)    
Debt instrument, repurchased amount     15.0 25.0
Debt instrument, repurchase price     $ 13.5 $ 23.6
7.875% Senior Notes, Due 2026 | Level 3        
Line of Credit Facility [Line Items]        
Senior Notes   400.0    
12% Paid in Cash or 13.25% Paid in Kind Senior Notes, Due 2027        
Line of Credit Facility [Line Items]        
Debt instrument stated percentage of interest (percentage)     12.00%  
Covenant liquidity requirement     $ 125.0  
Senior Notes   199.5    
Unamortized discount $ (10.5) (24.5)    
Proceeds from Issuance of Debt 68.0 $ 158.5    
12% Paid in Cash or 13.25% Paid in Kind Senior Notes, Due 2027 | Level 3        
Line of Credit Facility [Line Items]        
Senior Notes $ 85.5      
12% Paid in Cash or 13.25% Paid in Kind Senior Notes, Due 2027 | Payment in Kind        
Line of Credit Facility [Line Items]        
Debt instrument stated percentage of interest (percentage)     13.25%  
12% Paid in Cash or 13.25% Paid in Kind Senior Notes, Due 2027 | Minimum        
Line of Credit Facility [Line Items]        
Debt instrument stated percentage of interest (percentage)     7.00%  
PMC Senior Secured Notes | Minimum        
Line of Credit Facility [Line Items]        
Debt covenant, required consolidated tangible net worth     $ 275.0