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General - Computation of Basic and Diluted Earnings Per Share (EPS) (Detail) - shares
shares in Thousands
3 Months Ended
Jul. 28, 2018
Jul. 29, 2017
Earnings Per Share [Abstract]    
Denominator for basic earnings per share – weighted average shares (in shares) 92,529 93,350
Effect of dilutive securities - stock options, restricted stock and stock purchase plans (in shares) 0 669
Denominator for diluted earnings per share – weighted average shares (in shares) 92,529 94,019