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Revenue Recognition (Tables)
 3 Months Ended
Apr. 30, 2020
Revenue from Contract with Customer [Abstract]  
Summary Disaggregation of Revenue by Region
The following table summarizes revenue by region based on the billing address of customers:
Three Months Ended April 30,
20202019
AmountPercentage of
Revenue		AmountPercentage of
Revenue
(in thousands, except percentages)
Americas$245,633  75 %$98,160  80 %
Asia Pacific (“APAC”)
31,278  9  10,441  9  
Europe, Middle East, and Africa (“EMEA”)
51,256  16  13,387  11  
Total$328,167  100 %$121,988  100 %