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Consolidated Balance Sheets (Parenthetical) - $ / shares
Oct. 18, 2015
Apr. 24, 2015
Statement of Financial Position [Abstract]    
Preferred Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Preferred Stock, Shares Authorized 2,500,000 2,500,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 50,000,000 50,000,000
Common Stock, Shares, Issued 32,140,614 32,054,236
Common Stock, Shares, Outstanding 25,973,177 25,996,102
Treasury Stock, Shares 6,167,437 6,058,134