Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 25, 2020	Jan. 26, 2019
Cash Flows from Operating Activities:
Net income	$ 93,759	$ 114,717
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	13,415	11,525
Deferred income tax provision	956	4,057
(Gain) Loss on sale of property, net	(9)	2
Stock-based compensation	189	179
Changes in assets and liabilities:
Trade receivables	12,318	8,021
Inventories	9,500	(11,243)
Prepaid and other assets	(911)	(3,181)
Accounts payable	(7,271)	(15,913)
Accrued and other liabilities	3,264	(1,132)
Net cash provided by operating activities	125,210	107,032
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(15,847)	(27,456)
Proceeds from sale of property, plant and equipment	10	10
Net cash used in investing activities	(15,837)	(27,446)
Cash Flows from Financing Activities:
Proceeds from stock options exercised	406	403
Repurchase of common shares	(4,319)	0
Net cash (used in) provided by financing activities	(3,913)	403
Net Increase in Cash and Equivalents	105,460	79,989
Cash and Equivalents - Beginning of Period	156,200	189,864
Cash and Equivalents - End of Period	261,660	269,853
Supplemental disclosure of cash flow information:
Interest paid	38	38
Income taxes paid, net of refunds	$ 29,335	$ 30,908