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General (Tables)
 9 Months Ended
Jan. 28, 2017
Accounting Policies [Abstract]  
Computation of Basic and Diluted Earnings Per Share (EPS)
The following table sets forth the computation of the weighted average shares outstanding used to calculate basic and diluted earnings per share ("EPS"):
 
Three Months Ended
 
Nine Months Ended
 
January 28,
2017
 
January 30,
2016
 
January 28,
2017
 
January 30,
2016
Denominator for basic earnings per share – weighted average shares
94,737

 
95,335

 
95,252

 
97,809

Effect of dilutive securities – stock options, restricted stock and stock purchase plans
622

 
595

 
663

 
679

Denominator for diluted earnings per share – weighted average shares
95,359

 
95,930

 
95,915

 
98,488