Income Taxes (Deferred tax (liabilities) assets) (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Mar. 31, 2018
Deferred tax (liabilities) assets
Goodwill	$ (39,020)	$ (32,290)
Other	(429)	(645)
Total deferred tax liabilities	(39,449)	(32,935)
Property and equipment	19,723	25,056
Insurance reserves	9,071	6,769
Warranty and other reserves	3,360	2,978
Loss carryforwards	2,507	1,963
Other	6,954	7,644
Total deferred tax assets	41,615	44,410
Net deferred tax assets	$ 2,166	$ 11,475