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v3.25.2

Senior Secured Term Loan Facilities - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2023 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jul. 14, 2025
Debt Instrument [Line Items] |  |  |  |  |  |
Accrued interest |  | $ 400 |  | $ 400 |  |
Minimum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unrestricted cash and cash equivalent balance required to maintain in accounts |  | 18,750 |  | $ 18,750 |  |
Debt Financing Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate per annum | 14.00% |  |  |  |  |
Maturity date | May 08, 2026 |  |  |  |  |
Repayment description |  |  |  | The Term Loans shall mature on May 8, 2026. Therefore, the balance of the Term Loans was included in senior secured term loan facilities, current, under the current liabilities on the condensed consolidated balance sheet as of June 30, 2025. The Term Loans will not be subject to amortization payments. The Company is permitted to prepay the Term Loans from time to time, in whole or in part, subject to payment of a make-whole amount equal to the unpaid principal amount of the portion of the Term Loans being repaid or prepaid, plus accrued and unpaid interest of the portion of the Term Loans being repaid or prepaid, plus an amount equal to the remaining scheduled interest payments due on such portion of the Term Loans being repaid or prepaid as if such Term Loans were to remain outstanding until the scheduled maturity date. |  |
Debt Financing Agreement [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unrestricted cash and cash equivalent balance required to maintain in accounts |  | $ 22,500 |  | $ 22,500 |  |
Debt Financing Agreement [Member] | Minimum [Member] | Subsequent Event [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unrestricted cash and cash equivalent balance required to maintain in accounts |  |  |  |  |  | $ 18,750
Initial Term Loan [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate per annum |  | 16.13% | 16.13% | 16.13% | 16.13% |
Issuance costs and related transaction costs, amortised |  | $ 3,700 |  | $ 3,700 |  |
Initial Term Loan [Member] | Debt Financing Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Term loan | $ 75,000 |  |  |  |  |
Delayed Draw Term Loan [Member] | Debt Financing Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Term loan | 37,500 |  |  |  |  |
Delayed Draw Term Loan 2 | Debt Financing Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Term loan | $ 37,500 |  |  |  |  |
FibroGen International [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest expense |  | $ 3,000 | $ 2,900 | $ 5,900 | $ 5,800 |

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