Balance Sheet Components - Rollforward of Allowance For Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 24,900	$ 17,000
Provision for credit losses	30,250	25,606
Write-offs	(17,057)	(19,406)
Ending balance	$ 38,093	$ 23,200