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Equity Incentive Plans - Additional Information (Detail) |  |  | 1 Months Ended | 12 Months Ended |
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May 30, 2024 shares | May 27, 2021 shares | Jan. 31, 2024 USD ($) Days $ / shares | Jul. 31, 2023 USD ($) Days $ / shares | Jun. 30, 2023 shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | May 31, 2014 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Securities remaining available for future issuance |  |  |  |  |  | 10,500,000 |  |  |
Stock options granted (in shares) |  |  |  |  |  | 0 | 0 | 0 |
Employee Stock Option |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Stock options granted (in shares) |  |  |  |  |  | 0 | 0 | 0 |
Share-based compensation expenses | $ |  |  |  |  |  | $ 0 | $ 0 | $ 0 |
Employee Stock Option | Minimum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  | 1 year |  |  |
Employee Stock Option | Maximum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  | 4 years |  |  |
Restricted Stock Units |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Performance-based restricted stock and restricted stock units, eliminated minimum vesting period under amended 2004 plan |  |  |  |  |  | 3 years |  |  |
Initial one-time award granted |  |  |  |  |  | 2,929,000 | 4,869,000 | 3,555,000 |
Share-based compensation expenses | $ |  |  |  |  |  | $ 12,300,000 | $ 23,000,000 | $ 20,000,000 |
Total unrecognized compensation expense related to grants of restricted stock units | $ |  |  |  |  |  | $ 7,600,000 |  |  |
Weighted average period for unrecognized compensation expense related to grants of stock options |  |  |  |  |  | 1 year 9 months 18 days |  |  |
Fair value of shares | $ |  |  |  |  |  | $ 17,300,000 | $ 14,000,000.0 | $ 18,100,000 |
Granted, weighted average grant date fair value | $ / shares |  |  |  |  |  | $ 4.01 | $ 6.06 | $ 5.43 |
Number of shares, cancelled |  |  |  |  |  | 2,080,000 | 269,000 | 151,000 |
Restricted Stock Units | Minimum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  | 1 year |  |  |
Restricted Stock Units | Maximum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  | 4 years |  |  |
Performance Stock Units |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  | 600,000 | 1,000,000 |  |
Initial one-time award granted |  |  |  |  |  | 600,000 | 1,000,000 |  |
Share-based compensation expenses | $ |  |  |  |  |  | $ 1,500,000 | $ 700,000 |  |
Total unrecognized compensation expense related to grants of restricted stock units | $ |  |  |  |  |  | $ 1,700,000 |  |  |
Weighted average period for unrecognized compensation expense related to grants of stock options |  |  |  |  |  | 2 years 2 months 12 days |  |  |
Performance period commencing date |  |  | Jan. 25, 2024 | Jul. 01, 2023 |  |  |  |  |
Performance period ending date |  |  | Jan. 25, 2029 | Jul. 01, 2028 |  |  |  |  |
Number of consecutive trading days | Days |  |  | 30 | 30 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  |  |  |  | $ 3.78 | $ 3.29 |  |
Allocated percentage |  |  |  |  |  | 25.00% | 20.00% |  |
Percentage of performance measurement |  |  |  |  |  | 100.00% |  |  |
Number of shares, cancelled |  |  |  |  |  | 400,000 |  |  |
Share price | $ / shares |  |  |  |  |  | $ 4.38 | $ 4.39 |  |
Performance Stock Units | Tranche One |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  | $ 600,000 | $ 800,000 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  | $ 4.16 | $ 3.98 |  |  |  |  |
Share price | $ / shares |  |  | $ 4.83 | $ 5.75 |  |  |  |  |
Performance Stock Units | Tranche Two |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  | $ 600,000 | $ 700,000 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  | $ 3.98 | $ 3.64 |  |  |  |  |
Share price | $ / shares |  |  | $ 5.65 | $ 7.25 |  |  |  |  |
Performance Stock Units | Tranche Three |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  | $ 500,000 | $ 700,000 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  | $ 3.66 | $ 3.31 |  |  |  |  |
Share price | $ / shares |  |  | $ 7.15 | $ 9 |  |  |  |  |
Performance Stock Units | Tranche Four |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  | $ 500,000 | $ 600,000 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  | $ 3.32 | $ 2.93 |  |  |  |  |
Share price | $ / shares |  |  | $ 8.9 | $ 11.2 |  |  |  |  |
Performance Stock Units | Tranche Five |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  |  | $ 500,000 |  |  |  |  |
Granted, weighted average grant date fair value | $ / shares |  |  |  | $ 2.58 |  |  |  |  |
Share price | $ / shares |  |  |  | $ 13.75 |  |  |  |  |
Performance Stock Units | Minimum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting percentage |  |  | 0.00% | 0.00% |  |  |  |  |
Performance Stock Units | Maximum |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting percentage |  |  | 100.00% | 100.00% |  |  |  |  |
2000 Plan | Class A common stock |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  | 11,500,000 |  |  |
2004 Plan |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based compensation award extended expiration date |  |  |  |  |  | May 29, 2024 |  |  |
2004 Plan | Class A common stock |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | 25,500,000 | 18,000,000 |  |  |  |  |  |  | 10,000,000
Number of additional shares authorized under the plan | 7,500,000 | 8,000,000 |  |  |  |  |  |  |
2023 Inducement Plan | Restricted Stock Units |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Initial one-time award granted |  |  |  |  | 1,000,000 |  |  |  |
2023 Inducement Plan | Performance Stock Units |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Initial one-time award granted |  |  |  |  | 1,000,000 |  |  |  |
2023 Inducement Plan | Class A common stock |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  | 2,000,000 |  |  |  |

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