Fair Value Measurements - Schedule of Fair Value of Available-for-sale Marketable Securities by Remaining Contractual Maturities (Details) - Short-term Investments $ in Thousands	Jan. 31, 2026 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Due in one year or less	$ 264,084
Due in one to two years	208,393
Total available-for-sale securities	$ 472,477