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Stockholders' Equity - Schedule 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
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 56,326	$ 62,154	$ 92,648	$ 110,321
Total unrecognized stock-based compensation expense	227,155		$ 227,155
Weighted-Average Expected Recognition Period (in years)			1 year 6 months
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized expense, stock options	80		$ 80
Weighted-Average Expected Recognition Period (in years)			1 year 8 months 12 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized expense, RSUs and PSUs	190,654		$ 190,654
Weighted-Average Expected Recognition Period (in years)			1 year 6 months
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized expense, RSUs and PSUs	36,421		$ 36,421
Weighted-Average Expected Recognition Period (in years)			1 year 4 months 24 days
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	747	497	$ 1,251	841
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	11,587	12,580	20,598	21,216
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	30,304	30,977	48,372	55,341
Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 13,688	$ 18,100	$ 22,427	$ 32,923