v3.26.3
Investments - Schedule of Unrealized Loss on Available-for-Sale Investments (Detail) - USD ($)
$ in Thousands
Sep. 26, 2026
Dec. 27, 2025
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale investments with unrealized losses, Less than 12 months, Fair Value $ 119,521 $ 19,540
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 1,734 442
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 11,617 24,243
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 1,642 1,209
Available-for-sale investments with unrealized losses, Fair Value, Total 131,138 43,783
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 3,376 1,651
Asset-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale investments with unrealized losses, Less than 12 months, Fair Value 4,441 2,768
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 203 386
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 7,119 10,425
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 1,064 742
Available-for-sale investments with unrealized losses, Fair Value, Total 11,560 13,193
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 1,267 1,128
Corporate bonds, commercial paper, and direct obligations of government agencies    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale investments with unrealized losses, Less than 12 months, Fair Value 94,588 16,772
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 1,495 56
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 4,498 13,818
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 578 467
Available-for-sale investments with unrealized losses, Fair Value, Total 99,086 30,590
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 2,073 $ 523
U.S. Treasury obligations    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale investments with unrealized losses, Less than 12 months, Fair Value 20,492  
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 36  
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 0  
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 0  
Available-for-sale investments with unrealized losses, Fair Value, Total 20,492  
Available-for-sale investments with unrealized losses, Unrealized Loss, Total $ 36