CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Common Shares	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Non-Controlling Interests	Total
Balance at Apr. 26, 2014	$ 51,981	$ 262,901	$ 238,384	$ (31,380)	$ 7,832	$ 529,718
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			70,773		1,198	71,971
Other comprehensive loss				(759)	(76)	(835)
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax	898	26	(10,684)			(9,760)
Purchases of common stock	(2,132)	(1,267)	(48,454)			(51,853)
Stock option and restricted stock expense		6,780				6,780
Tax benefit from exercise of options		1,592				1,592
Dividends paid			(14,513)			(14,513)
Balance at Apr. 25, 2015	50,747	270,032	235,506	(32,139)	8,954	533,100
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			34,628		1,154	35,782
Other comprehensive loss				(1,790)	(790)	(2,580)
Stock issued for stock and employee benefit plans, net of cancellations and withholding tax	222	(49)	(2,046)			(1,873)
Purchases of common stock	(680)	(197)	(17,584)			(18,461)
Stock option and restricted stock expense		5,123				5,123
Tax benefit from exercise of options		392				392
Dividends paid			(8,112)			(8,112)
Balance at Oct. 24, 2015	$ 50,289	$ 275,301	$ 242,392	$ (33,929)	$ 9,318	$ 543,371