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Acquisitions (Schedule Of Intangible Assets Acquired) (Details) - Customer Lists [Member] - USD ($)
$ in Thousands
9 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Fiscal 2020 Acquisitions [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets   $ 2,847
Weighted average useful life 7 years  
Fiscal 2021 Acquisitions [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets $ 400  
Weighted average useful life 7 years