Income Taxes - Narrative (Details) $ in Thousands	12 Months Ended
	Jan. 31, 2025 USD ($)
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	$ 492,000
Foreign Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	6,000
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	626,200
State and Local Jurisdiction | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	59,300
Domestic Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,346,100
Domestic Tax Jurisdiction | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	$ 88,000