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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2015
Oct. 31, 2014
Stock-based compensation $ 6,691 $ 3,585 $ 17,101 $ 10,241
Cost of subscription services [Member]        
Stock-based compensation 149 74 396 181
Cost of professional services and other [Member]        
Stock-based compensation 1,042 549 2,757 1,711
Research and development [Member]        
Stock-based compensation 2,021 942 5,047 2,703
Sales and marketing [Member]        
Stock-based compensation 1,932 754 4,807 2,290
General and administrative [Member]        
Stock-based compensation $ 1,547 $ 1,266 $ 4,094 $ 3,356