v3.26.3
Long-Term Debt and Other Financing Arrangements - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended 14 Months Ended
Nov. 05, 2024
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2025
Jan. 01, 2026
Feb. 28, 2023
Dec. 31, 2021
Debt Instrument [Line Items]                          
Prepayment received $ 235,000,000 $ 104,800,000 $ 104,800,000 $ 0           $ 918,200,000      
Service agreement, whole fees payment $ 13,300,000                        
Debt instrument, principal amount   414,692,000       $ 414,692,000       410,022,000      
Repayment period 8 years                        
Gain on contingent interest feature within the 2024 Debt Repayment   3,822,000     $ 0 8,003,000 $ 0            
Proceeds from 2023 Funding Agreement           19,920,000 27,147,000            
Other non-current liabilities   $ 464,184,000       464,184,000       $ 451,618,000      
Payment of dividends           $ 7,932,000 $ 7,932,000            
Series A Perpetual Preferred Stock                          
Debt Instrument [Line Items]                          
Debt instrument, principal amount                 $ 149,400,000        
Preferred stock, shares issued (in shares)   149,425       149,425     149,425 149,425      
Preferred stock, dividend rate, percentage           7.00%     7.00%        
Preferred stock, liquidation preference (in dollars per share)                 $ 1,000        
Preferred stock, value   $ 0       $ 0     $ 105,300,000 $ 0      
Payment of dividends           7,900,000              
2023 13% Notes                          
Debt Instrument [Line Items]                          
Loan interest rate               13.00%          
2024 Debt Repayment                          
Debt Instrument [Line Items]                          
Debt instrument, principal amount   221,625,000       221,625,000       221,625,000      
Accrued fees   40,800,000       40,800,000              
Other nonoperating gains (losses)   3,800,000 4,200,000                    
Debt instrument, fair value                     $ 162,800,000    
Debt discount unamortized                     $ 58,800,000    
2023 Funding Agreement                          
Debt Instrument [Line Items]                          
Debt instrument, principal amount   193,067,000       193,067,000       182,147,000      
Debt instrument, fair value   20,800,000       20,800,000              
Partnership agreement, prepayment receivable               $ 252,000,000          
Debt instrument, percentage funded by partner               50.00%          
Proceeds from 2023 Funding Agreement     $ 19,900,000     19,900,000              
Funding agreement           $ 9,000,000.0              
Partnership agreement, repayment period           4 years              
Other non-current liabilities   33,600,000       $ 33,600,000              
Partnership agreement, minimum liquidity requirement                       $ 30,000,000  
Long-term debt, fair value   20,800,000       20,800,000              
2023 Funding Agreement | Balance Sheet Location [Axis]: us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent                          
Debt Instrument [Line Items]                          
Other non-current liabilities   16,500,000       16,500,000              
2023 Funding Agreement | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent                          
Debt Instrument [Line Items]                          
Other non-current liabilities   17,100,000       17,100,000              
2021 Funding Agreement                          
Debt Instrument [Line Items]                          
Debt instrument, principal amount   $ 0       $ 0       $ 6,250,000     $ 94,200,000
Funding agreement       $ 6,300,000