Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 29,720	$ 32,043	$ 27,445	$ 38,039
Components of other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	245	(565)	826	(596)
Unrealized loss on available-for-sale securities	(29)	(82)	(165)	(141)
Amortization of defined benefit pension items:
Other comprehensive income (loss), net of tax	(274)	483	(991)	455
Comprehensive income	$ 29,446	$ 32,526	$ 26,454	$ 38,494