| **Board of Director and Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions** | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Defined Benefit Plan Disclosure [Line Items]**                                                            |            |   |   |
| Duration of service for eligibility                                                                         | 3 months        |   |   |
| Employer matching contribution, percent                                                                     | 3.00%           |   |   |
| Maximum annual contribution per employee, percent                                                           | 50.00%          |   |   |
| Employer's maximum additional match, percentage                                                             | 2.00%           |   |   |
| Employer's discretionary matching contribution                                                              | 4.00%           |   |   |
| Cash contribution to profit-sharing plan                                                                    | $ 4.1           | $ 3.7 | $ 4.1 |
| Noncontributory Defined Benefit Multi-Employer Retirement Plan                                              |            |   |   |
| **Defined Benefit Plan Disclosure [Line Items]**                                                            |            |   |   |
| Retirement plan expense                                                                                     | $ 0.7           | $ 0.3 | $ 0.6 |

| X                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Defined Contribution Plan, Employer Matching Contribution, Additional Percentage or Match
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| - Definition
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cost for defined contribution plan.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.
+ References
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