Stock-based Compensation - Weighted-Average Assumptions Used to Estimate Fair Value (Detail) - Employee stock purchase plan awards [Member]	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volatility	0.00%	0.00%	39.00%	59.00%
Risk-free interest rate	0.00%	0.00%	5.38%	4.73%
Expected term (years)			6 months	6 months
Dividend yield	0.00%	0.00%	0.00%	0.00%