Goodwill and Other Intangibles (Summary of Goodwill and Other Intangibles) (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Mar. 28, 2020
Acquired Finite and Indefinite Lived Intangible Assets [Line Items]
Goodwill	$ 75,090	$ 75,090
Indefinite lived:
Gross Carrying Amount	85,090	85,090
Net Carrying Amount	85,090	85,090
Finite lived:
Intangible Assets Including Goodwill Gross	97,814	97,814
Accumulated Amortization	(7,988)	(7,614)
Intangible Assets, Net (Including Goodwill)	89,826	90,200
Customer relationships
Finite lived:
Gross Carrying Amount	11,300	11,300
Accumulated Amortization	(6,780)	(6,463)
Net Carrying Amount	4,520	4,837
Other Intangible Assets
Finite lived:
Gross Carrying Amount	1,424	1,424
Accumulated Amortization	(1,208)	(1,151)
Net Carrying Amount	216	273
Goodwill
Acquired Finite and Indefinite Lived Intangible Assets [Line Items]
Goodwill	75,090	75,090
Trademarks and trade names
Acquired Finite and Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets including goodwill.	8,900	8,900
State insurance licenses
Acquired Finite and Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets including goodwill.	$ 1,100	$ 1,100