Summary of Significant Accounting Policies - Summary of Property and Equipment Estimated Useful Lives (Detail) |
Dec. 31, 2025 |
|---|---|
| Machinery and Laboratory Equipment [Member] | |
| Accounting Policies [Line Items] | |
| Property, Plant and Equipment, Useful Life | 5 years |
| Vehicles [Member] | |
| Accounting Policies [Line Items] | |
| Property, Plant and Equipment, Useful Life | 6 years |
| Furniture and Tools [Member] | |
| Accounting Policies [Line Items] | |
| Property, Plant and Equipment, Useful Life | 5 years |
| Electronic Equipment [Member] | |
| Accounting Policies [Line Items] | |
| Property, Plant and Equipment, Useful Life | 3 years |
| Leasehold Improvements [Member] | |
| Accounting Policies [Line Items] | |
| Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] | us-gaap:UsefulLifeTermOfLeaseMember |