Defined Benefit and Defined Contribution Plans (Fair Value Measurement Information For Major Categories Of Defined Benefit Plan Assets) (Details) - USD ($) $ in Thousands		Mar. 27, 2021	Mar. 28, 2020	Mar. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets		$ 21,666	$ 18,611	$ 20,838
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets			18,611
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Companies Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]	3,372	7,383
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International Companies Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]	1,391	3,137
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]	11,542	761
Significant Other Observable Inputs (Level 2) [Member] | U.S. Companies Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]		283
Significant Other Observable Inputs (Level 2) [Member] | U.S. Corporate Bonds Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]	$ 5,361	6,686
Significant Other Observable Inputs (Level 2) [Member] | International Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value measurement of defined benefit plan assets	[1]		$ 361

[1] Fair value measurements are reported in one of three levels based on the lowest level of significant input used: Level 1 (unadjusted quoted prices in active markets); Level 2 (observable market inputs, other than quoted prices included in Level 1); and Level 3 (unobservable inputs that cannot be corroborated by observable market data).