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Fair Value Measurements - Cash and Cash Equivalents (Detail) - USD ($)
$ in Thousands
Sep. 27, 2024
Dec. 29, 2023
Cash    
Fair Value Measurements [Line Items]    
Amortized Cost $ 162,839 $ 132,464
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Estimated Fair Value 162,839 132,464
Money market securities    
Fair Value Measurements [Line Items]    
Amortized Cost 56,869 54,686
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Estimated Fair Value 56,869 54,686
Total cash equivalents    
Fair Value Measurements [Line Items]    
Amortized Cost 56,869 54,686
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Estimated Fair Value 56,869 54,686
Total cash and cash equivalents    
Fair Value Measurements [Line Items]    
Amortized Cost 219,708 187,150
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Estimated Fair Value $ 219,708 $ 187,150