Information about Geographic Areas - Revenues by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2021	Apr. 30, 2020
Revenues by geography
Total revenues	$ 433,573	$ 337,106
North America
Revenues by geography
Total revenues	246,300	195,657
Europe
Revenues by geography
Total revenues	121,304	89,422
Asia Pacific
Revenues by geography
Total revenues	53,632	42,292
Middle East, Africa, and Latin America
Revenues by geography
Total revenues	$ 12,337	$ 9,735

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details