Quarterly Financial Data (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Apr. 26, 2013
Jan. 25, 2013
Oct. 26, 2012
Jul. 27, 2012
Apr. 27, 2012
Jan. 27, 2012
Oct. 28, 2011
Jul. 29, 2011
Apr. 26, 2013
Apr. 27, 2012
Apr. 29, 2011
Jan. 25, 2013
As Reported [Member]
Oct. 26, 2012
As Reported [Member]
Jul. 27, 2012
As Reported [Member]
Apr. 27, 2012
As Reported [Member]
Jan. 27, 2012
As Reported [Member]
Oct. 28, 2011
As Reported [Member]
Jul. 29, 2011
As Reported [Member]
Apr. 29, 2011
As Reported [Member]
Apr. 30, 2010
As Reported [Member]
Jan. 25, 2013
As Adjusted [Member]
Oct. 26, 2012
As Adjusted [Member]
Jul. 27, 2012
As Adjusted [Member]
Apr. 27, 2012
As Adjusted [Member]
Jan. 27, 2012
As Adjusted [Member]
Oct. 28, 2011
As Adjusted [Member]
Jul. 29, 2011
As Adjusted [Member]
Apr. 29, 2011
As Adjusted [Member]
Apr. 30, 2010
As Adjusted [Member]
Jan. 25, 2013
Adjustment [Member]
Oct. 26, 2012
Adjustment [Member]
Jul. 27, 2012
Adjustment [Member]
Apr. 27, 2012
Adjustment [Member]
Jan. 27, 2012
Adjustment [Member]
Oct. 28, 2011
Adjustment [Member]
Jul. 29, 2011
Adjustment [Member]
Apr. 29, 2011
Adjustment [Member]
Apr. 30, 2010
Adjustment [Member]
Footnote Quarterly Financial Data [Abstract]                                                                            
Net Sales $ 353,877 $ 434,440 $ 410,877 $ 409,715 $ 413,528 $ 428,339 $ 407,185 $ 405,361 $ 1,608,909 $ 1,654,413 $ 1,676,906                                                      
Operating Income (38,490) (47,388) 16,757 25,264 28,791 30,258 21,330 27,495 (43,857) 107,874 88,540                                                      
Net Income 27,024 (55,236) 10,342 15,008 22,036 20,255 12,747 17,812 (2,862) 72,850 54,163                                                      
Earnings (Loss) Per Share - Basic $ 0.97 $ (1.97) $ 0.36 $ 0.53 $ 0.76 $ 0.69 $ 0.42 $ 0.59 $ (0.10) $ 2.45 $ 1.79                                                      
Earnings (Loss) Per Share - Diluted $ 0.97 $ (1.97) $ 0.36 $ 0.53 $ 0.76 $ 0.69 $ 0.42 $ 0.59 $ (0.10) $ 2.45 $ 1.78                                                      
Common Stock Price High $ 44.99 $ 45.36 $ 41.65 $ 41.09 $ 39.71 $ 35.79 $ 35.23 $ 36.98                                                            
Common Stock Price Low $ 39.63 $ 34.45 $ 36.67 $ 36.91 $ 35.09 $ 30.50 $ 27.41 $ 29.26                                                            
Cash Dividends Paid Per Share $ 0.275 $ 0.275 $ 0.275 $ 0.250 $ 0.250 $ 0.250 $ 0.250 $ 0.200 $ 1.075 $ 0.95 $ 0.78                                                      
Quarterly Financial Information, Explanatory Disclosure                 Quarter 3 2013 consolidated results included the negative impact of $68,409, as a result of impairment on assets held for sale associated with the definitive agreement to sell the Mimi’s Café restaurant chain to Le Duff. The number of registered stockholders of our common stock at June 14, 2013, was 18,753. Quarter 4 2013 consolidated results included the negative impact of $57,743 as a result of the loss associated with the sale of Mimi’s Café and in fiscal 2013, included Mimi’s Café results through February 15, 2013. Quarter 4 2012 consolidated results included the positive impact of $2,010 as a result of eliminating a two-day early cutoff and the positive impact of $1,200 as a result of settlements with certain taxing authorities                                                          
Error Corrections And Prior Period Adjustments Restatement [Line Items]                                                                            
Deferred income taxes long term liabilities 41,873       48,089       41,873 48,089   90,784 51,739 51,739 51,739 56,777 56,777 56,777     87,134 48,089 48,089 48,089 53,127 53,127 53,127     (3,650) (3,650) (3,650) (3,650) (3,650) (3,650) (3,650)    
Retained earnings $ 833,723       $ 866,799       $ 833,723 $ 866,799   $ 810,725 $ 873,688 $ 871,085 $ 863,149 $ 848,397 $ 835,503 $ 830,327 $ 818,561 $ 788,049 $ 814,375 $ 877,338 $ 874,735 $ 866,799 $ 852,047 $ 839,153 $ 833,977 $ 822,211 $ 791,699 $ 3,650 $ 3,650 $ 3,650 $ 3,650 $ 3,650 $ 3,650 $ 3,650 $ 3,650 $ 3,650