v3.26.1
Fresh Start Accounting - Reorganization of Balance Sheet (Details) - USD ($)
$ in Millions
Jun. 28, 2026
Sep. 30, 2025
Sep. 29, 2025
Jun. 29, 2025
Jun. 30, 2024
Jun. 25, 2023
Current assets:            
Cash and cash equivalents (includes restricted cash) $ 576.3   $ 481.0 $ 467.2 $ 1,045.9 $ 1,757.0
Short-term investments 512.3   354.4 488.2    
Total cash, cash equivalents and short-term investments 1,088.6   835.4 955.4    
Accounts receivable, net 98.2   155.6 178.8    
Inventories, net 234.2   392.3 435.4    
Prepaid expenses 38.8   71.8 97.2    
Investment tax credit receivable 84.4   654.0 653.4    
Other current assets 45.2   119.9 222.0    
Total current assets 1,589.4   2,229.0 2,542.2    
Property and equipment, net 691.4   769.2 3,916.5    
Intangible assets, net 392.2   445.7 23.8    
Long-term investment tax credit receivable 116.5   181.3 105.0    
Other assets 215.4   212.9 266.9    
Total assets 3,004.9   3,838.1 6,854.4    
Current liabilities:            
Accounts payable and accrued expenses 118.5   206.8 280.2    
Contract liabilities and distributor-related reserves 61.1   72.9 50.0    
Income taxes payable 0.7   0.9 0.8    
Finance lease liabilities 0.2   0.6 0.5    
Other current liabilities 51.1   59.8 220.5    
Total current liabilities 231.6   341.0 7,090.0    
Long-term liabilities:            
Long-term debt 931.0   1,609.0 0.0    
Convertible notes, net 756.5   539.7 0.0    
Finance lease liabilities - long-term 1.9   1.9 8.4    
Long-term warrant     33.6      
Forward equity contract     371.1      
Other long-term liabilities 153.7   184.7 203.1    
Liabilities subject to compromise     0.0      
Total liabilities 2,074.7   3,081.0 7,301.5    
Commitments and contingencies      
Stockholders’ equity:            
Common stock 0.1     0.2    
Additional paid-in-capital 1,345.9     4,094.1    
Accumulated other comprehensive loss 0.0   0.0 (3.8)    
Accumulated deficit (415.8)   0.0 (4,537.6)    
Total stockholders' equity (deficit) 930.2 $ 757.1 757.1 (447.1) $ 882.1 $ 1,621.9
Total liabilities and stockholders’ equity (deficit) $ 3,004.9   3,838.1 $ 6,854.4    
Reorganization, Sucessor            
Stockholders’ equity:            
Common stock     0.0      
Additional paid-in-capital     757.1      
Predecessor            
Current assets:            
Cash and cash equivalents (includes restricted cash)     571.6      
Short-term investments     354.4      
Total cash, cash equivalents and short-term investments     926.0      
Accounts receivable, net     155.6      
Inventories, net     385.5      
Prepaid expenses     75.5      
Investment tax credit receivable     654.0      
Other current assets     118.3      
Total current assets     2,314.9      
Property and equipment, net     3,775.8      
Intangible assets, net     24.2      
Long-term investment tax credit receivable     181.3      
Other assets     254.9      
Total assets     6,551.1      
Current liabilities:            
Accounts payable and accrued expenses     196.5      
Contract liabilities and distributor-related reserves     72.9      
Income taxes payable     0.9      
Finance lease liabilities     0.0      
Other current liabilities     29.3      
Total current liabilities     299.6      
Long-term liabilities:            
Long-term debt     0.0      
Convertible notes, net     0.0      
Finance lease liabilities - long-term     0.0      
Long-term warrant     0.0      
Forward equity contract     0.0      
Other long-term liabilities     16.6      
Liabilities subject to compromise     7,315.3      
Total liabilities     7,631.5      
Commitments and contingencies          
Stockholders’ equity:            
Common stock     0.2      
Additional paid-in-capital     4,103.6      
Accumulated other comprehensive loss     (3.0)      
Accumulated deficit     (5,181.2)      
Total stockholders' equity (deficit)     (1,080.4)      
Total liabilities and stockholders’ equity (deficit)     6,551.1      
Reorganization Adjustments            
Current assets:            
Cash and cash equivalents (includes restricted cash)     (90.6)      
Short-term investments     0.0      
Total cash, cash equivalents and short-term investments     (90.6)      
Accounts receivable, net     0.0      
Inventories, net     0.0      
Prepaid expenses     (3.6)      
Investment tax credit receivable     0.0      
Other current assets     0.0      
Total current assets     (94.2)      
Property and equipment, net     0.0      
Intangible assets, net     0.0      
Long-term investment tax credit receivable     0.0      
Other assets     0.0      
Total assets     (94.2)      
Current liabilities:            
Accounts payable and accrued expenses     10.3      
Contract liabilities and distributor-related reserves     0.0      
Income taxes payable     0.0      
Finance lease liabilities     0.6      
Other current liabilities     26.1      
Total current liabilities     37.0      
Long-term liabilities:            
Long-term debt     1,609.0      
Convertible notes, net     539.7      
Finance lease liabilities - long-term     8.3      
Long-term warrant     33.6      
Forward equity contract     371.1      
Other long-term liabilities     201.5      
Liabilities subject to compromise     (7,315.3)      
Total liabilities     (4,515.1)      
Commitments and contingencies          
Stockholders’ equity:            
Common stock     (0.2)      
Additional paid-in-capital     (4,103.6)      
Accumulated other comprehensive loss     0.0      
Accumulated deficit     7,767.6      
Total stockholders' equity (deficit)     4,420.9      
Total liabilities and stockholders’ equity (deficit)     (94.2)      
Reorganization Adjustments | Reorganization, Sucessor            
Stockholders’ equity:            
Common stock     0.0      
Additional paid-in-capital     757.1      
Fresh-Start Adjustments            
Current assets:            
Cash and cash equivalents (includes restricted cash)     0.0      
Short-term investments     0.0      
Total cash, cash equivalents and short-term investments     0.0      
Accounts receivable, net     0.0      
Inventories, net     6.8      
Prepaid expenses     (0.1)      
Investment tax credit receivable     0.0      
Other current assets     1.6      
Total current assets     8.3      
Property and equipment, net     (3,006.6)      
Intangible assets, net     421.5      
Long-term investment tax credit receivable     0.0      
Other assets     (42.0)      
Total assets     (2,618.8)      
Current liabilities:            
Accounts payable and accrued expenses     0.0      
Contract liabilities and distributor-related reserves     0.0      
Income taxes payable     0.0      
Finance lease liabilities     0.0      
Other current liabilities     4.4      
Total current liabilities     4.4      
Long-term liabilities:            
Long-term debt     0.0      
Convertible notes, net     0.0      
Finance lease liabilities - long-term     (6.4)      
Long-term warrant     0.0      
Forward equity contract     0.0      
Other long-term liabilities     (33.4)      
Liabilities subject to compromise     0.0      
Total liabilities     (35.4)      
Commitments and contingencies          
Stockholders’ equity:            
Common stock     0.0      
Additional paid-in-capital     0.0      
Accumulated other comprehensive loss     3.0      
Accumulated deficit     (2,586.4)      
Total stockholders' equity (deficit)     (2,583.4)      
Total liabilities and stockholders’ equity (deficit)     (2,618.8)      
Fresh-Start Adjustments | Reorganization, Sucessor            
Stockholders’ equity:            
Common stock     0.0      
Additional paid-in-capital     $ 0.0