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Borrowings - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 06, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Mar. 04, 2021
Line of Credit Facility [Line Items]          
Covenant liquidity requirement   $ 128.4      
Senior Notes   487.4 $ 595.8    
Debt Instrument, Redemption, Period Four          
Line of Credit Facility [Line Items]          
Redemption Price 109.875%        
Senior Notes          
Line of Credit Facility [Line Items]          
Long-term debt, gross   500.0 645.0    
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   4.1 1.3 $ 0.9  
Debt instrument, repurchased amount   70.9 15.0 $ 25.0  
7.875% Senior Notes, Due 2026 | Secured Debt          
Line of Credit Facility [Line Items]          
Long-term debt, gross   0.0 360.0    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net   0.0 (3.9)    
12% Paid in Cash or 13.25% Paid in Kind Senior Notes, Due 2027 | Secured Debt          
Line of Credit Facility [Line Items]          
Long-term debt, gross   0.0 285.0    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net   0.0 (45.3)    
PMC Senior Secured Notes | Minimum          
Line of Credit Facility [Line Items]          
Debt covenant, required consolidated tangible net worth   $ 275.0      
Senior Notes Due 2029          
Line of Credit Facility [Line Items]          
Debt instrument stated percentage of interest (percentage) 9.875%        
Senior Notes Due 2029 | Senior Notes          
Line of Credit Facility [Line Items]          
Debt instrument stated percentage of interest (percentage) 9.875% 9.875%      
Long-term debt, gross $ 500.0 $ 500.0 0.0    
Debt Instrument, Issued As A Percent Of Principal 99.556%        
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed 40.00%        
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net   $ (12.6) $ 0.0    
PMC Senior Secured Notes Due 2026          
Line of Credit Facility [Line Items]          
Debt instrument stated percentage of interest (percentage) 7.875%        
Loss on extinguishment of debt $ 53.4        
Redemption Price 101.969%        
Debt instrument, repurchased amount $ 289.1        
Debt Instrument, Fee Amount 5.0        
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net 36.8        
Debt Instrument, Payment Of Make-Whole Redemption Premium $ 11.6        
OFC Senior Secured Notes Due 2027          
Line of Credit Facility [Line Items]          
Debt instrument stated percentage of interest (percentage) 12.00%        
Redemption Price 102.50%        
Debt instrument, repurchased amount $ 285.0