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Consolidated Statements of Shareholders’ Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance, beginning of year at Jan. 31, 2013 $ 92,472 $ 451,434 $ 1,869 $ (307,536)  
Balance, end of year at Jan. 31, 2014 97,779 451,394 (1,089) (297,924) $ 250,160
Common shares          
Stock options and share units exercised 5,307        
Stock-based compensation expense (Note 16)   2,523      
Stock options and share units exercised   (1,525)      
Settlement of stock options (Note 16)   (1,510)      
Stock option income tax benefits   472      
Foreign currency translation adjustments, net of income taxes     (2,958)   (2,958)
Net income       9,612 9,612
Balance, end of year at Jan. 31, 2015 247,839 450,623 (25,212) (282,865) 390,385
Common shares          
Stock options and share units exercised 2,626        
Issuance of common shares, net of issuance costs (Note 14) 142,052        
Acquisitions (Note 3) 5,382        
Stock-based compensation expense (Note 16)   1,543      
Stock options and share units exercised   (1,670)      
Settlement of stock options (Note 16)   (733)      
Stock option income tax benefits   89      
Foreign currency translation adjustments, net of income taxes     (24,123)   (24,123)
Net income       15,059 15,059
Balance, end of year at Jan. 31, 2016 252,471 446,747 (34,880) (262,303) 402,035
Common shares          
Stock options and share units exercised $ 4,632        
Stock-based compensation expense (Note 16)   1,577      
Stock options and share units exercised   (68)      
Settlement of stock options (Note 16)   (7,000)      
Stock option income tax benefits   $ 1,615      
Foreign currency translation adjustments, net of income taxes     (9,640)   (9,640)
Unrealized loss on marketable securities (Note 4)     $ (28)   (28)
Net income       $ 20,562 $ 20,562