CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Oct. 24, 2020	Oct. 26, 2019
Statement of Cash Flows [Abstract]
Net income (loss)	$ 78,028	$ (3,542)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation	20,272	22,695
Amortization	18,609	18,580
Investment gain	0	(34,334)
Non-cash employee compensation	16,660	19,302
Non-cash losses (gains) and other, net	5,976	0
Change in assets and liabilities:
Receivables	(505,535)	(209,100)
Inventory	(58,238)	27,238
Accounts payable	(179,276)	118,301
Accrued liabilities	24,555	102,301
Long term receivables	687	(4,292)
Other changes from operating activities, net	38,782	(17,326)
Net cash used in operating activities	(423,004)	(14,653)
Investing activities:
Additions to property and equipment	(14,370)	(22,851)
Cash collections on DPP receivable	408,907	212,307
Other investing activities	396	0
Net cash provided by investing activities	394,933	189,456
Financing activities:
Dividends paid	(25,009)	(50,504)
Payments on long-term debt	0	(87,090)
Draw on revolving credit	111,000	0
Other financing activities	631	(4,067)
Net cash provided by (used in) financing activities	86,622	(141,661)
Effect of exchange rate changes on cash	2,986	787
Net change in cash and cash equivalents	61,537	33,929
Cash and cash equivalents at beginning of period	77,944	95,646
Cash and cash equivalents at end of period	139,481	129,575
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Noncash investments acquired	$ 437,330	$ 211,056