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Commitments and Contingencies - Additional Information (Detail) - USD ($)
Oct. 31, 2025
Jan. 31, 2025
Loss Contingencies [Line Items]    
Total manufacturing purchase commitments $ 106,200,000 $ 56,400,000
Liabilities recognized from adverse purchase commitments 0 0
Total cash payments 5,300,000  
Cash payments within 12 months 3,500,000  
Cash payments within 12 to 24 months 1,800,000  
Indemnification agreement [Member]    
Loss Contingencies [Line Items]    
Payments under indemnification obligations 0  
Liabilities recorded under indemnification obligations 0 0
Other Matters [Member]    
Loss Contingencies [Line Items]    
Liabilities recorded under indemnification obligations $ 0 $ 0