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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
shares in Thousands, $ / shares in Thousands
Oct. 29, 2016
Jan. 30, 2016
Oct. 31, 2015
Shareholders' equity [Abstract]:      
Preferred Shares, par value (in dollars per share) $ 0 $ 0 $ 0
Preferred Shares, authorized (in shares) 100,000 100,000 100,000
Preferred Shares, issued (in shares) 0 0 0
Preferred Shares, outstanding (in shares) 0 0 0
Class A Common Shares      
Shareholders' equity [Abstract]:      
Common Shares, par value (in dollars per share) $ 0 $ 0 $ 0
Common Shares, authorized (in shares) 250,000 250,000 250,000
Common Shares, issued (in shares) 84,875 84,396 84,053
Common Shares, outstanding (in shares) 72,635 74,185 78,877
Class B Common Shares      
Shareholders' equity [Abstract]:      
Common Shares, par value (in dollars per share) $ 0 $ 0 $ 0
Common Shares, authorized (in shares) 100,000 100,000 100,000
Common Shares, issued (in shares) 7,733 7,733 7,733
Common Shares, outstanding (in shares) 7,733 7,733 7,733
Treasury Stock [Member]      
Shareholders' equity [Abstract]:      
Common Shares, outstanding (in shares) 12,240 10,211 5,176
Treasury Stock, Shares 12,240 10,211 5,176