XML 60 R47.htm IDEA: XBRL DOCUMENT v3.24.3
Debt - Senior Secured Notes due 2026 (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 15, 2021
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2023
Line of Credit Facility              
Principal balance   $ 1,061,400,000   $ 1,061,400,000     $ 1,130,600,000
Gain on early extinguishment of debt   (176,000) $ 2,717,000 354,000 $ 3,213,000    
2026 Senior Notes | Senior Notes              
Line of Credit Facility              
Principal balance $ 400,000,000 278,500,000   278,500,000     291,600,000
Stated interest rate (as a percent) 6.00%            
Mandatory and optional prepayments       13,000,000.0      
Gain on early extinguishment of debt     3,300,000 600,000 4,200,000    
Interest expense   4,100,000 4,900,000 12,700,000 15,000,000.0    
Interest paid     600,000 8,700,000 10,900,000    
Amortization of the discount   500,000 600,000 1,500,000 1,800,000    
Amortization of debt issuance costs   $ 400,000 400,000 $ 1,200,000 1,400,000    
Effective interest rate (as a percent)   7.30%   7.30%      
2026 Senior Notes | Senior Notes | Fair Value, Inputs, Level 2              
Line of Credit Facility              
Debt fair value   $ 277,800,000   $ 277,800,000     256,600,000
2026 Senior Notes | Senior Notes | Period 1              
Line of Credit Facility              
Redemption rate 101.00%            
2026 Senior Notes | Senior Secured Term Loan              
Line of Credit Facility              
Principal balance           $ 30,000,000.0  
Extinguishment of debt, amount           $ 30,000,000.0  
Senior Secured Term Loan | Senior Secured Term Loan              
Line of Credit Facility              
Principal balance $ 516,000,000.0 297,600,000   297,600,000     $ 350,400,000
Debt instrument, reduction of quarterly amortization payment, waiver       12,000,000.0      
Gain on early extinguishment of debt   (200,000) (600,000) (300,000) (1,000,000.0)    
Interest expense   8,600,000 9,900,000 26,900,000 30,600,000    
Amortization of the discount   600,000 700,000 1,700,000 2,200,000    
Amortization of debt issuance costs   $ 200,000 $ 200,000 $ 400,000 $ 500,000    
Effective interest rate (as a percent)   11.20%   11.20%