Fair Value Measurements - Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Sep. 29, 2023	Dec. 30, 2022
Cash
Fair Value Measurements [Line Items]
Amortized Cost	$ 83,121	$ 109,299
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	83,121	109,299
Money market securities
Fair Value Measurements [Line Items]
Amortized Cost	53,978	52,159
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	53,978	52,159
Total cash equivalents
Fair Value Measurements [Line Items]
Amortized Cost	53,978	52,159
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	53,978	52,159
Total cash and cash equivalents
Fair Value Measurements [Line Items]
Amortized Cost	137,099	161,458
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	$ 137,099	$ 161,458