CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Aug. 01, 2015	May. 02, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.5	$ 0.5
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	40,081,131	39,702,036
Treasury stock (in shares)	1,605,514	1,346,624