Leasing (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Sale Leaseback Transaction [Line Items]
Finance lease and financing obligation assets, net	$ 196,575	$ 128,029
Long-term finance leases and financing obligations	298,373	$ 238,089
Operating lease payments, related to options to extend, reasonably certain of being exercised	74,500
Finance lease payments, related to options to extend, reasonable certain of being exercised	115,800
Lease payments, leases signed but not yet commenced	11,900
Failed Sale Leasebacks That Were Assumed Through Acquisitions [Member]
Sale Leaseback Transaction [Line Items]
Finance lease and financing obligation assets, net	4,500
Long-term finance leases and financing obligations	$ 7,500
Minimum [Member]
Sale Leaseback Transaction [Line Items]
Remaining lease term	1 year
Option to extend, term of option	1 year
Maximum [Member]
Sale Leaseback Transaction [Line Items]
Remaining lease term	38 years
Option to extend, term of option	30 years