Consolidated Statements of Stockholders Equity (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Capital in Excess of Par Value [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Stockholders Equity at Apr. 30, 2010 $ 641,807 $ 426 $ 180,476 $ 791,699 $ (330,794)
Shares Outstanding Beginning Balance at Apr. 30, 2010   30,372,253      
Net Income 54,163     54,163  
Dividends Paid 23,651     (23,651)  
Treasury Stock Repurchased 19,010       (19,010)
Treasury stock repurchased, shares   (682,835)      
Treasury stock reissued under employee plans 14,215   8,024   6,191
Treasury stock reissued under employee plans, shares   539,362      
Tax benefit - employee plans 236   236    
Stockholders Equity at Apr. 29, 2011 667,760 426 188,736 822,211 (343,613)
Shares Outstanding Ending Balance at Apr. 29, 2011   30,228,780      
Net Income 72,850     72,850  
Dividends Paid 28,262     (28,262)  
Treasury Stock Repurchased 70,269       (70,269)
Treasury stock repurchased, shares   (2,110,930)      
Treasury stock reissued under employee plans 17,366   12,838   4,528
Treasury stock reissued under employee plans, shares   492,605      
Tax benefit - employee plans 791   791    
Stockholders Equity at Apr. 27, 2012 660,236 426 202,365 866,799 (409,354)
Shares Outstanding Ending Balance at Apr. 27, 2012   28,610,455      
Net Income (2,862)     (2,862)  
Dividends Paid 30,214     (30,214)  
Treasury Stock Repurchased 63,052       (63,052)
Treasury stock repurchased, shares   (1,559,815)      
Treasury stock reissued under employee plans 14,633   10,838   3,795
Treasury stock reissued under employee plans, shares   367,464      
Tax benefit - employee plans 2,390   2,390    
Stockholders Equity at Apr. 26, 2013 $ 581,131 $ 426 $ 215,593 $ 833,723 $ (468,611)
Shares Outstanding Ending Balance at Apr. 26, 2013   27,418,104