Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012
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)	58,881	63,609
Treasury shares - shares (in shares)	58,614	53,886