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Investments (Summary) (Details) - USD ($)
$ in Thousands
Mar. 28, 2020
Mar. 30, 2019
Debt and Equity Securities, FV-NI [Line Items]    
Available-for-sale debt securities $ 14,774 $ 13,408
Marketable equity securities [1] 9,829 11,073
Non-marketable equity investments 21,536 20,276
Investments $ 46,139 $ 44,757
[1]
Unrealized gains or losses on investments are recorded in earnings at each measurement date.