CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Jul. 27, 2019	Jul. 28, 2018
Statement of Cash Flows [Abstract]
Net income (loss)	$ 29,807	$ (4,509)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	11,335	10,840
Amortization	9,297	10,017
Gain on investment	(34,334)	0
Non-cash employee compensation	10,234	6,357
Deferred consideration in securitized receivables	(105,697)	(15,509)
Change in assets and liabilities, net of acquired	34,134	198,265
Net cash provided by (used in) operating activities	(45,224)	205,461
Investing activities:
Additions to property and equipment	(8,901)	(10,184)
Collection of deferred purchase price receivables	105,697	15,509
Other investing activities	0	2,244
Net cash provided by investing activities	96,796	7,569
Financing activities:
Dividends paid	(25,538)	(25,289)
Retirement of long-term debt	(5,533)	(176,633)
Draw on revolving credit	0	16,000
Other financing activities	(5,085)	2,117
Net cash used in financing activities	(36,156)	(183,805)
Effect of exchange rate changes on cash	(1,281)	(733)
Net change in cash and cash equivalents	14,135	28,492
Cash and cash equivalents at beginning of period	95,646	62,984
Cash and cash equivalents at end of period	$ 109,781	$ 91,476