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Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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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

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