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Stock-based Compensation - Weighted-Average Assumptions Used to Estimate Fair Value (Detail) - Employee stock purchase plan awards [Member]
3 Months Ended 9 Months Ended
Oct. 31, 2024
Oct. 31, 2023
Oct. 31, 2024
Oct. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Volatility 56.00% 54.00% 47.00% 56.00%
Risk-free interest rate 4.55% 5.49% 4.97% 5.11%
Expected term (years) 6 months 6 months 6 months 6 months
Dividend yield 0.00% 0.00% 0.00% 0.00%