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Revenue Recognition (Tables)
 6 Months Ended
Jul. 31, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue by Geographical Region
The following tables summarize revenue by geographical region (dollars in thousands): 
Three Months Ended July 31,
20232022
AmountPercentage of
Revenue		AmountPercentage of
Revenue
Americas (1)
$139,718 49 %$120,977 50 %
Europe, Middle East, and Africa81,009 28 %69,521 29 %
Asia-Pacific (2)
66,583 23 %51,724 21 %
Total revenue$287,310 100 %$242,222 100 %
(1)Revenue from the United States represented 44% and 45% of our total revenues for the three months ended July 31, 2023 and 2022, respectively.
(2)Revenue from Japan represented 10% and 9% of our total revenues for the three months ended July 31, 2023 and 2022, respectively.

Six Months Ended July 31,
20232022
AmountPercentage of
Revenue		AmountPercentage of
Revenue
Americas (1)
$263,170 46 %$235,128 48 %
Europe, Middle East, and Africa177,940 31 %139,124 29 %
Asia-Pacific (2)
135,788 23 %113,036 23 %
Total revenue$576,898 100 %$487,288 100 %
(1)Revenue from the United States represented 41% and 44% of our total revenues for the six months ended July 31, 2023 and 2022, respectively.
(2)Revenue from Japan represented 11% and 11% of our total revenues for the six months ended July 31, 2023 and 2022, respectively.