Stockholders' Equity - Fair Value of Options Granted Under Equity Incentive Plan and Shares Subject to Employee Stock Purchase Plan Valuation Assumptions (Detail) - Employee Stock Purchase Plan [Member] - $ / shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average risk-free interest rate	4.27%	5.36%
Expected dividend yield	0.00%	0.00%
Expected life	6 months	6 months
Expected volatility	38.00%	39.00%
Weighted average fair value	$ 2.86	$ 5.46