Balance Sheet Components - Rollforward of Allowance For Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 17,262	$ 25,916
Provision for credit losses	9,637	13,052
Write-offs	(8,912)	(19,980)
Ending balance	$ 17,987	$ 18,988