Shareholders' Equity (Narrative) (Details)	Jan. 28, 2017 vote $ / shares shares	Jan. 30, 2016 $ / shares shares
Equity [Abstract]
Common stock, shares authorized | shares	120,000,000	120,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Preferred stock, shares authorized | shares	5,000,000
Preferred stock, par value | $ / shares	$ 0.01
Voting right per common stock share (vote) | vote	1