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The Company and Significant Accounting Policies - Stock-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 31, 2025 USD ($) Days $ / shares | Jun. 30, 2025 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) $ / shares shares | Jun. 30, 2024 USD ($)
Restricted Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share-based compensation expenses | $ |  | $ 2.2 | $ 3.8 | $ 4.3 | $ 8.4
Total unrecognized compensation expense related to grants of restricted stock units | $ |  | 9.8 |  | $ 9.8 |
Weighted average period for unrecognized compensation expense related to grants of restricted stock units |  |  |  | 1 year 8 months 12 days |
Performance Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share-based compensation expenses | $ |  | 0.5 | $ 0.4 | $ 1.0 | $ 0.9
Total unrecognized compensation expense related to grants of restricted stock units | $ |  | $ 2.8 |  | $ 2.8 |
Weighted average period for unrecognized compensation expense related to grants of restricted stock units |  |  |  | 2 years 2 months 12 days |
Share price |  | $ 2.28 |  | $ 2.28 |
Number of consecutive trading days | Days | 30 |  |  |  |
Performance period commencing date | Jan. 21, 2025 |  |  |  |
Performance period ending date | Jan. 21, 2030 |  |  |  |
Weighted Average Fair Value |  |  |  | $ 1.88 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | shares |  | 1,390,000 |  | 1,390,000 |
Allocated percentage |  |  |  | 25.00% |
Percentage of performance measurement |  |  |  | 100.00% |
Performance Stock Units | Tranche One |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share price | $ 3 |  |  |  |
Fair value of each of the Tranches | $ | $ 0.7 |  |  |  |
Weighted Average Fair Value | $ 2.11 |  |  |  |
Performance Stock Units | Tranche Two |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share price | $ 4 |  |  |  |
Fair value of each of the Tranches | $ | $ 0.7 |  |  |  |
Weighted Average Fair Value | $ 1.95 |  |  |  |
Performance Stock Units | Tranche Three |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share price | $ 5 |  |  |  |
Fair value of each of the Tranches | $ | $ 0.6 |  |  |  |
Weighted Average Fair Value | $ 1.8 |  |  |  |
Performance Stock Units | Tranche Four |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Share price | $ 6 |  |  |  |
Fair value of each of the Tranches | $ | $ 0.6 |  |  |  |
Weighted Average Fair Value | $ 1.67 |  |  |  |
Minimum | Restricted Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting period |  |  |  | 1 year |
Minimum | Performance Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting percentage | 0.00% |  |  |  |
Maximum | Restricted Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting period |  |  |  | 4 years |
Maximum | Performance Stock Units |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |
Vesting percentage | 100.00% |  |  |  |

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