Summary of Business and Significant Accounting Policies - Accounts Receivable Allowance For Credit Loss Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance as of beginning of year	$ 17,000	$ 20,500
Provision for credit losses	45,211	32,587
Write-offs	(37,311)	(36,087)
Balance as of end of year	$ 24,900	$ 17,000