v3.26.1
Investments - Schedule of Unrealized Loss on Available-for-Sale Investments (Detail) - USD ($)
$ in Thousands
Jun. 27, 2026
Dec. 27, 2025
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale investments with unrealized losses, Less than 12 months, Fair Value $ 72,894 $ 19,540
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 779 442
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 8,172 24,243
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 912 1,209
Available-for-sale investments with unrealized losses, Fair Value, Total 81,066 43,783
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 1,691 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 3,757 2,768
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 500 386
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 6,481 10,425
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 525 742
Available-for-sale investments with unrealized losses, Fair Value, Total 10,238 13,193
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 1,025 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 56,411 16,772
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 272 56
Available-for-sale investments with unrealized losses, 12 months or longer, Fair Value 1,691 13,818
Available-for-sale investments with unrealized losses, 12 months or longer, Unrealized Loss 387 467
Available-for-sale investments with unrealized losses, Fair Value, Total 58,102 30,590
Available-for-sale investments with unrealized losses, Unrealized Loss, Total 659 $ 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 12,726  
Available-for-sale investments with unrealized losses, Less than 12 months, Unrealized Loss 7  
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 12,726  
Available-for-sale investments with unrealized losses, Unrealized Loss, Total $ 7