Consolidated Balance Sheets (Parenthetical) - $ / shares	Apr. 30, 2016	Jan. 30, 2016
Statement of Financial Position [Abstract]
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, without par value (in dollars per share)
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	40,905,000	40,804,000
Common stock, shares outstanding	37,449,000	37,701,000