Revenue, Deferred Revenue and Remaining Performance Obligations - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2026	Jan. 31, 2025
Movement in Deferred Revenue [Roll Forward]
Beginning balance	$ 3,728,677	$ 3,054,099
Additions to deferred revenue	5,836,766	4,628,202
Recognition of deferred revenue	(4,812,005)	(3,953,624)
Ending balance	$ 4,753,438	$ 3,728,677

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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