Investments, Debt and Equity Securities (Details) - USD ($) $ in Thousands	Sep. 27, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, amortized cost	$ 38,103	$ 45,701
Available-for-sale debt securities, gross unrealized gains	806	565
Debt securities, available-for-sale, gross unrealized losses	(79)	(86)
Available-for-sale debt securities:	38,830	46,180
Marketable equity securities:	29,443	21,218
Less than one year	15,621
Less than one year	15,871
One year through five years	22,482
One year through five years	22,959
Six years through ten years	0
Six years through ten years	0
After ten years	0
After ten years	0
Total	38,103
Total	38,830
United States Government and agency securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, amortized cost	38,103	45,701
Available-for-sale debt securities, gross unrealized gains	806	565
Debt securities, available-for-sale, gross unrealized losses	(79)	(86)
Available-for-sale debt securities:	$ 38,830	$ 46,180