Divestiture and Discontinued Operations - Additional Information (Detail) - EOTECH LLC - USD ($)	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2021
Accounts Receivable, after Allowance for Credit Loss, Current	$ 51,000		$ 51,000			$ 62,000
Shared Services Agreement
Proceeds from Fees Received	$ 38,000	$ 39,000	$ 111,000	$ 104,000
Photonics
Cash								$ 70,000,000
Earnout payment							$ 30,000,000	$ 30,000,000
Photonics | Subsequent Event
Earnout payment					$ 14,000,000