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Marketable Securities (Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity) (Details) - USD ($)
$ in Thousands
Jun. 24, 2023
Mar. 25, 2023
Amortized Cost    
Within 1 year $ 36,749 $ 35,824
After 1 year 38,954 37,552
Amortized Cost 75,703 73,376
Estimated Fair Value    
Within 1 year 35,765 34,978
After 1 year 38,029 36,509
Estimated Fair Value (Net Carrying Amount) $ 73,794 $ 71,487