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v3.25.1

Nature of Business - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 20, 2024 | Jan. 30, 2024 | Feb. 28, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Nature Of Operations [Line Items] |  |  |  |  |
Retained earnings (accumulated deficit) |  |  |  | $ 148,586 | $ 90,604
Net Loss |  |  |  | 57,982 | 42,823
Proceeds received pursuant to agreement |  |  | $ 185,000 |  |
Cash and cash equivalents |  |  |  | $ 141,239 | $ 28,769
Avorbio Common Stock [Member] |  |  |  |  |
Nature Of Operations [Line Items] |  |  |  |  |
Stock issued during the period shares new issues converted pursuant to reverse recapitalization |  |  |  | 4,163,606 |
AVRO Avrobio Common Stock [Member] |  |  |  |  |
Nature Of Operations [Line Items] |  |  |  |  |
Reverse stock split |  |  |  | 1-for-12 |
Conversion of stock shares percentage |  |  |  | 0.53% |
Stock issued during the period shares reverse recapitalization |  |  |  | 10,956,614 |
Stock shares issued during the period subject to reverse recapitalization |  |  |  | 11,447 |
Subscription Agreement [Member] |  |  |  |  |
Nature Of Operations [Line Items] |  |  |  |  |
Stock issued during the period shares new issues |  | 7,790,889 |  |  |
Sale of stock issue price per share | $ 12.4 | $ 12.4 |  |  |
Proceeds from the issuance of common stock | $ 96,600 | $ 96,600 |  |  |
Subscription Agreement [Member] | Avorbio Common Stock [Member] |  |  |  |  |
Nature Of Operations [Line Items] |  |  |  |  |
Stock issued during the period shares new issues converted pursuant to reverse recapitalization |  |  |  | 4,163,606 |

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