Quarterly report [Sections 13 or 15(d)]

Long-Term Debt - Senior Secured Notes due 2029 - Additional Information (Detail)

v3.26.1
Long-Term Debt - Senior Secured Notes due 2029 - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Debt Instrument [Line Items]              
Gain on extinguishment of debt     $ (94.6)   $ (94.6) $ 0.0  
Senior Secured Note, Discount Amount   $ 35.5          
Interest expense     40.0 $ 55.4 89.5 110.0  
Outstanding principal amount     2,039.6   2,039.6    
2029 Secured Notes [Member]              
Debt Instrument [Line Items]              
Debt instrument , Purchase Price $ 853.0            
Debt instrument call premium $ 49.0            
Debt Instrument Call Premium, Percent 6.125%            
Accrued interest $ 4.0            
Reduction to long term debt 776.2            
Gain on extinguishment of debt         (72.8)    
12.250 Senior Secured Notes due 2029 [Member]              
Debt Instrument [Line Items]              
Aggregate principal amount of senior notes issued $ 800.0 $ 800.0          
Debt instrument interest rate   12.25%          
Debt Instrument, Maturity Date   Apr. 15, 2029          
Senior Secured Note, Discount Percentage   2.702%          
Senior Secured Note, Discount Amount   $ 21.6          
Deferred financing costs   $ 13.9          
Non-cash interest expense     0.3 0.9 1.3 1.7  
Amortization of deferred financing costs     0.2 0.6 0.8 1.1  
Unamortized debt discount and debt issuance costs             $ 25.9
Senior secured notes, carrying amount             774.1
Fair value of notes             888.1
Interest expense     $ 8.1 $ 25.9 $ 34.2 $ 51.8  
Outstanding principal amount             $ 800.0