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Condensed Consolidated Statements of Operations (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Costs of subscription services    
Share-based compensation expense $ 7,877 $ 5,691
Costs of professional services    
Share-based compensation expense 10,792 8,021
Product development    
Share-based compensation expense 68,511 51,029
Sales and marketing    
Share-based compensation expense 25,612 23,159
General and administrative    
Share-based compensation expense $ 19,867 $ 19,888