CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Oct. 27, 2018	Oct. 28, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ 24,137	$ 71,091
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	22,145	22,458
Amortization	19,781	19,375
Bad debt expense	3,533	3,716
Non-cash employee compensation	13,926	16,635
Deferred consideration in securitized receivables	(165,567)	(24,581)
Change in assets and liabilities, net of acquired	282,259	(31,586)
Net cash provided by operating activities	200,214	77,108
Investing activities:
Additions to property and equipment	(22,094)	(16,431)
Collection of deferred purchase price receivables	165,567	24,581
Other investing activities	2,875	11,626
Net cash provided by investing activities	146,348	19,776
Financing activities:
Dividends paid	(49,980)	(49,969)
Repurchases of common stock	0	(71,254)
Retirement of long-term debt	(180,321)	(7,377)
Draw on (payment on) revolving credit	(16,000)	33,000
Other financing activities	3,592	3,561
Net cash used in financing activities	(242,709)	(92,039)
Effect of exchange rate changes on cash	(1,322)	1,652
Net change in cash and cash equivalents	102,531	6,497
Cash and cash equivalents at beginning of period	62,984	94,959
Cash and cash equivalents at end of period	$ 165,515	$ 101,456