Income Taxes (Deferred Tax (Liabilities) Assets) (Details) - USD ($) $ in Thousands	Mar. 27, 2021	Mar. 28, 2020
Deferred tax (liabilities) assets
Lease liabilities	$ (148,496)	$ (131,484)
Goodwill	(56,623)	(47,204)
Property and equipment	(21,032)	(18,232)
Other	(910)	(1,288)
Total deferred tax liabilities	(227,061)	(198,208)
Leased assets	186,168	169,366
Insurance reserves	11,441	10,192
Other	15,282	14,765
Total gross deferred tax assets	212,891	194,323
Total net deferred tax liability	$ (14,170)	$ (3,885)