Goodwill and Other Intangibles (Summary of Goodwill and Other Intangibles) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Apr. 01, 2017
Indefinite lived:
Gross Carrying Amount	$ 81,220	$ 77,853
Net Carrying Amount	81,220	77,853
Finite lived:
Accumulated Amortization	(6,684)	(6,316)
Gross Carrying Amount	89,704	86,337
Net Carrying Amount	83,020	80,021
Customer relationships [Member]
Finite lived:
Gross Carrying Amount	7,100	7,100
Accumulated Amortization	(5,756)	(5,543)
Net Carrying Amount	1,344	1,557
Other Intangible Assets [Member]
Finite lived:
Gross Carrying Amount	1,384	1,384
Accumulated Amortization	(928)	(773)
Net Carrying Amount	456	611
Goodwill [Member]
Indefinite lived:
Gross Carrying Amount	72,920	69,753
Trademarks and trade names [Member]
Indefinite lived:
Net Carrying Amount	7,200	7,000
State insurance licenses [Member]
Indefinite lived:
Net Carrying Amount	$ 1,100	$ 1,100