Marketable Securities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 29, 2024	Mar. 30, 2024
Debt Securities, Available-for-sale [Line Items]
Gross unrealized losses	$ 1,343	$ 1,008
Amortized cost on available for sale securities held at gross unrealized loss	224,500	172,100
Securities in a continuous unrealized loss position for more than 12 months, amortized cost	21,800	25,000
Securities in a continuous unrealized loss position for more than 12 months, aggregate unrealized loss	$ 300	$ 300
Minimum
Debt Securities, Available-for-sale [Line Items]
Maturity period for highly-rated securities	1 year
Maximum
Debt Securities, Available-for-sale [Line Items]
Maturity period for highly-rated securities	3 years