v3.25.4
Fresh Start Accounting - Cumulative Impact of Reorganization Adjustments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 29, 2025
Dec. 28, 2025
Sep. 29, 2025
Dec. 29, 2024
Dec. 29, 2024
Jun. 29, 2025
Reorganization, Chapter 11 [Line Items]            
Write-off related to Predecessor directors’ and officers’ insurance policy $ (3.6) $ 0.0 $ (3.6) $ 0.0 $ 0.0  
Cancellation of unvested Predecessor stock compensation awards (61.5) 0.0 (61.5) $ 0.0 $ 0.0  
Less: Implied value of the obligation to issue Contingent Shares classified as equity 19.2   19.2      
Accumulated deficit 0.0 $ (150.6) 0.0     $ (4,537.6)
Reorganization Adjustments            
Reorganization, Chapter 11 [Line Items]            
Gain on settlement of liabilities subject to compromise 3,751.8          
Success fees (33.9)          
Write-off related to Predecessor directors’ and officers’ insurance policy (3.6)          
Cancellation of unvested Predecessor stock compensation awards (61.5)          
Total fresh start adjustments impacting reorganization items, net 3,652.8   3,652.8      
Cancellation of Old Common Stock and additional paid-in capital (direct charge to equity) 4,165.3   4,165.3      
Less: Implied value of the obligation to issue Contingent Shares classified as equity (19.2)   (19.2)      
Income tax effects on deferred income taxes (2.5)   (2.5)      
Accumulated deficit 7,767.6   $ 7,767.6      
Reorganization Adjustments | Additional Paid-in Capital            
Reorganization, Chapter 11 [Line Items]            
Issuance of New Common Stock and additional paid-in capital to existing equity holders (direct charge to equity) $ (28.8)