Income Taxes - Aggregate Changes in Balance of Gross Unrecognized Tax benefits (Detail) - USD ($)	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Income Tax Contingency [Line Items]
Beginning balance	$ 7,327,000	$ 7,683,000
Additions based on tax positions related to the current year	24,000	589,000
Decreases for tax positions of prior years	6,622,000	0
Lapse of statute of limitations	(11,000)	(945,000)
Ending balance	$ 718,000	$ 7,327,000