v3.25.4
Fresh Start Accounting - Shares Of Common Stock And Preliminary Estimated Reorganization Value (Details) - USD ($)
$ in Millions
Dec. 28, 2025
Sep. 30, 2025
Sep. 29, 2025
Sep. 28, 2025
Jun. 29, 2025
Dec. 29, 2024
Sep. 29, 2024
Jun. 30, 2024
Reorganizations [Abstract]                
Enterprise value     $ 2,600.0          
Total cash, cash equivalents and short-term investments $ 1,292.3   835.4   $ 955.4      
Less: Fair value of debt issued upon emergence, including issuance costs, excluding equity-classified substantial premium     (2,151.3)          
Less: Equity-classified substantial premium associated with New 2L Non-Renesas Convertible Notes     (168.8)          
Long-term warrant (34.2)   (33.6)   0.0      
Less: Cash from MACOM Shares sale captured in enterprise value     (60.8)          
Less: Deposit liabilities included in cash     (25.2)          
Less: Debt issuance costs     (8.0)          
Less: Restricted cash     (28.3)          
Implied value of Wolfspeed, Inc's common stock (including reserved but unissued shares)     959.4          
Less: Implied value of the Renesas Base Consideration Shares classified as a liability (302.5)   (371.1)   0.0      
Less: Implied value of the obligation to issue Contingent Shares classified as equity     (19.2)          
Implied value of Wolfspeed, Inc's common stock outstanding as of the Effective Date     569.1          
Plus: Equity-classified substantial premium associated with New 2L Non-Renesas Convertible Notes     168.8          
Less: Implied value of the obligation to issue Contingent Shares classified as equity     19.2          
Total stockholders' equity $ 627.4 $ 757.1 $ 757.1 $ (1,080.4) $ (447.1) $ 372.6 $ 628.9 $ 882.1