Marketable Securities (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 28, 2024	Mar. 30, 2024
Debt Securities, Available-for-sale [Line Items]
Amortized cost on available for sale securities held at gross unrealized loss	$ 10,800	$ 172,100
Securities in a continuous unrealized loss position for more than 12 months, amortized cost	8,700	25,000
Gross unrealized loss	$ (48)	(1,008)
Securities in a continuous unrealized loss position for more than 12 months, aggregate unrealized loss		$ 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