Summary of Business and Significant Accounting Policies - Allowance For Credit Loss Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of beginning of year	$ 17,262	$ 25,916
Provision for credit losses	16,932	22,198
Write-offs	(19,821)	(30,852)
Balance as of end of year	$ 14,373	$ 17,262