Supplemental Disclosure of Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Jan. 01, 2021	Jan. 03, 2020
Cash paid during the year:
Income taxes	$ 27,912	$ 20,118	$ 21,364
Non-cash investing and financing activities:
Unrealized (loss) gain on investments	(65)	(237)	347
Vested stock unit awards granted to settle accrued bonus	7,637	8,645	7,947
Accrual for capital expenditures	413	602	482
Right-of-use asset obtained in exchange for operating lease obligation	$ 792	$ 2,436	$ 29,480