Reconciles the Denominators of the Company's Calculation for Basic and Diluted Net Income per Share (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 30, 2022	Dec. 31, 2021	Jan. 01, 2021
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Shares used in basic per share computation	51,727	52,610	52,388
Shares used in diluted per share computation	52,280	53,331	53,323
Employee Stock Option
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Effect of dilutive stock outstanding	204	241	333
Restricted Stock Units (RSUs)
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Effect of dilutive stock outstanding	349	480	602