Fair Value Measurements - (Additional Information) (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Jun. 20, 2024 |
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Proceeds from the issuance of SAFEs | $ 34,100 | $ 0 | $ 34,125 | |
| Common stock, shares, issued | 1,407,753 | 14,856,309 | 1,407,753 | |
| Common stock, price per share | $ 0.0001 | $ 0.0001 | $ 0.0001 | |
| Fair value input amount transfer in between levels | $ 0 | $ 0 | ||
| Simple Agreements for Future Equity [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Common stock, shares, issued | 2,752,216 | 2,752,216 | ||
| Common stock, price per share | $ 12.4 | $ 12.4 | ||
| Simple Agreements for Future Equity [Member] | AVROBIO [Member] | ||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Common stock, shares, issued | 1,470,839 | |||
| Common stock, price per share | $ 12.4 | |||