Stockholders' Equity and Redeemable Convertible Preferred Stock - Summary of Shares Reserved for Issuance (Details) - shares	Sep. 30, 2026	Dec. 31, 2025
Class of Stock [Line Items]
Shares reserved for future grants	3,616,853	2,874,761
Shares reserved for future grants under 2024 Plan
Class of Stock [Line Items]
Shares reserved for future grants	768,560	701,119
Equity Incentive Plan, as amended (the "2024 Plan")
Class of Stock [Line Items]
Shares reserved for future grants	2,848,293	2,173,642