Divestiture and Discontinued Operations - Summary of Components Discontinued Operations Related to Photonics Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Operating expenses:
Loss from discontinued operations before provision for income taxes	$ (1,211)	$ (828)	$ (5,948)	$ (9,412)
Provision for income taxes	962	796	2,189	1,298
Net income from discontinued operations, net of taxes	0	48	1,095	365
Photonics
Operating expenses:
Operating Expenses	0	(48)	(162)	(365)
Operating income (loss) – discontinued operations	0	48	162	365
Other income (expense) – discontinued operations	0	0	933	0
Loss from discontinued operations before provision for income taxes	0	48	1,095	365
Provision for income taxes	0	0	0	0
Net income from discontinued operations, net of taxes	0	48	1,095	365
Photonics | Selling, general and administrative
Operating expenses:
Operating Expenses	$ 0	$ (48)	$ (162)	$ (365)