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Stock-Based Compensation - Additional Information (Detail) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Jun. 18, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation costs related to non-vested awards granted | $ 4,800,000 |  | $ 4,800,000 |  |
Accelerated cost | $ 200,000 | $ 600,000 |  |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) |  |  | 1,945,000 | 1,398,000 |
Employee Stock Purchase Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Maximum number of shares available for issuance under plan (in shares) | 250,000 |  | 250,000 |  |
Percentage of market value |  |  | 85.00% |  |
Percentage of employee's payroll deductions limited to employee's compensation |  |  | 10.00% |  |
Maximum stock value of shares purchased by employees |  |  | $ 25,000 |  |
Maximum number of shares that employee can purchase each period (in shares) |  |  | 250 |  |
2015 Omnibus Equity Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Maximum number of shares available for issuance under plan (in shares) |  |  |  |  | 9,625,000
2015 Omnibus Equity Incentive Plan | Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) |  |  | 1,900,000 |  |
Number of shares available for future grants (in shares) | 3,300,000 |  | 3,300,000 |  |
2015 Omnibus Equity Incentive Plan | Full Value Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award settled against shares (in shares) |  |  | 1.2 |  |
2015 Omnibus Equity Incentive Plan | Partial Value Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award settled against shares (in shares) |  |  | 1.0 |  |
2015 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock vesting period |  |  | 4 years |  |
Stock option expiration period |  |  | 10 years |  |
2015 Plan | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock vesting period | 7 months |  | 48 months |  |
Vested stock options exercised period following termination |  |  | 90 days |  |
2015 Plan | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock vesting period | 2 months |  | 12 months |  |

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