v3.25.2
Investments - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 28, 2025
Dec. 28, 2024
Debt Securities, Available-for-sale [Line Items]    
Investments maximum maturity period 5 years  
Unrealized gain (loss), net of unrealized gains/losses, on the investments in the bond portfolio $ (1,603,000) $ (3,573,000)