Stock-Based Compensation - Summary of Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 61,363	$ 60,758	$ 117,676	$ 115,652
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	6,453	5,666	12,393	10,498
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	12,759	14,033	25,127	27,422
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	21,972	21,380	41,346	40,186
Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 20,179	$ 19,679	$ 38,810	$ 37,546