Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares shares in Thousands	Aug. 01, 2015	Jan. 31, 2015
Shareholders' equity:
Preferred shares - authorized shares (in shares)	2,000	2,000
Preferred shares - par value (in dollars per share)	$ 0.01	$ 0.01
Preferred shares - shares issued (in shares)	0	0
Common shares - authorized shares (in shares)	298,000	298,000
Common shares - par value (in dollars per share)	$ 0.01	$ 0.01
Common shares - shares issued (in shares)	117,495	117,495
Common shares - outstanding shares (in shares)	49,037	52,912
Treasury shares - shares (in shares)	68,458	64,583