Commitments and Contingencies (Schedule Of Payments Due By Period) (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 28, 2020	Mar. 30, 2019
Commitments and Contingencies [Abstract]
Principal payments on long-term debt, Total		$ 566,400	$ 137,700
Principal payments on long-term debt, 4 to 5 years		566,400
Total undiscounted lease obligations	[1]	461,187
Finance lease commitments/financing obligations, Within 1 Year	[1]	52,480
Finance lease commitments/financing obligations, 2 to 3 Years	[1]	105,877
Finance lease commitments/financing obligations, 4 to 5 Years	[1]	87,866
Finance lease commitments/financing obligations, After 5 Years	[1]	214,964
Total Operating lease commitments	[1]	238,622
Operating lease commitments, Within 1 year	[1]	36,590
Operating lease commitments, 2 to 3 years	[1]	62,574
Operating lease commitments, 4 to 5 years	[1]	46,226
Operating lease commitments, After 5 years	[1]	93,232
Other liabilities, Total		1,933
Other liabilities, Within 1 year		800
Other liabilities, 2 to 3 years		1,133
Contractual commitments, Total		1,268,142
Contractual commitments, Within 1 year		89,870
Contractual commitments, 2 to 3 years		169,584
Contractual commitments, 4 to 5 years		700,492
Contractual commitments, After 5 years		308,196
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

[1] Operating and finance lease commitments represent future undiscounted lease payments and include $74.5 million and $115.8 million, respectively, related to options to extend lease terms that are reasonably certain of being exercised. See Note 12.