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Convertible Notes and Long-Term Borrowing - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Jan. 14, 2026
Jan. 02, 2025
d
Jan. 02, 2024
USD ($)
d
$ / shares
Feb. 02, 2021
USD ($)
d
$ / shares
Dec. 31, 2025
USD ($)
$ / shares
Dec. 28, 2024
USD ($)
Jan. 13, 2026
USD ($)
Jan. 06, 2026
USD ($)
Jan. 05, 2026
USD ($)
Short-term Debt [Line Items]                  
Amortization of debt premium, net         $ (3,062) $ 0      
Subsequent Event                  
Short-term Debt [Line Items]                  
Debt interest rate                 4.20%
Debt instrument, repurchase amount             $ 4,500    
Senior unsecured term loan commitment indebtedness                 $ 145,000
2026 Convertible notes                  
Short-term Debt [Line Items]                  
Convertible notes payable       $ 402,500          
Debt interest rate       3.25% 3.25%        
Proceeds from convertible note, net of issuance costs       $ 389,400          
Payments of stock issuance costs       $ 13,100          
Debt instrument, convertible, conversion price (in usd per share) | $ / shares       $ 57.78          
Debt instrument, convertible, threshold trading days | d       20          
Debt instrument, convertible, threshold consecutive trading days | d       30          
Debt instrument, convertible, threshold percentage of stock price trigger       130.00%          
Redemption price, percentage       100.00%          
2026 Convertible notes | Fair Value, Inputs, Level 2                  
Short-term Debt [Line Items]                  
Convertible notes payable         $ 144,600        
2026 Convertible notes | Subsequent Event                  
Short-term Debt [Line Items]                  
Debt interest rate 3.25%                
Redemption price, percentage 100.00%                
2026 Convertible notes | Debt Instrument, Redemption, Period One                  
Short-term Debt [Line Items]                  
Debt instrument, convertible, threshold trading days | d       20          
Debt instrument, convertible, threshold consecutive trading days | d       30          
Debt instrument, convertible, threshold percentage of stock price trigger       130.00%          
2026 Convertible notes | Debt Instrument, Redemption, Period Two                  
Short-term Debt [Line Items]                  
Debt instrument, convertible, threshold trading days | d       5          
Debt instrument, convertible, threshold consecutive trading days | d       5          
Debt instrument, convertible, maximum percentage of product of sales price and conversion rate       98.00%          
2026 Convertible notes | Convertible notes                  
Short-term Debt [Line Items]                  
Convertible notes payable     $ 205,800            
Repurchased face amount       $ 140,200          
2029 Convertible Notes                  
Short-term Debt [Line Items]                  
Debt interest rate         7.50%        
Debt instrument, convertible, conversion price (in usd per share) | $ / shares     $ 3.84            
Amortization of debt premium, net         $ 3,100        
2029 Convertible Notes | Fair Value, Inputs, Level 2                  
Short-term Debt [Line Items]                  
Convertible notes payable         $ 194,900        
2029 Convertible Notes | Convertible notes                  
Short-term Debt [Line Items]                  
Convertible notes payable     $ 177,500            
Debt instrument, convertible, conversion price (in usd per share) | $ / shares         $ 0.2606474        
Debt instrument, convertible, threshold trading days | d   30              
Debt instrument, convertible, threshold consecutive trading days | d   20 20            
Debt instrument, convertible, threshold percentage of stock price trigger   200.00% 130.00%            
Debt instrument, convertible, threshold consecutive trading day immediately after measurement period     5 days            
Debt instrument, convertible, threshold percentage of notes trading price trigger     98.00%            
Debt instrument, convertible, threshold consecutive trading day before notice   10 days              
2029 Convertible Notes | Convertible notes | Base Rate                  
Short-term Debt [Line Items]                  
Debt interest rate     7.50%            
2029 Convertible Notes | Convertible notes | Paid in Kind                  
Short-term Debt [Line Items]                  
Debt interest rate     10.00%            
2029 Convertible Notes | Convertible notes | Debt Instrument, Redemption, Period One                  
Short-term Debt [Line Items]                  
Debt instrument, convertible, threshold consecutive trading days | d     30,000            
2029 Notes Tender Offer | Convertible notes | Subsequent Event                  
Short-term Debt [Line Items]                  
Convertible notes payable               $ 177,500