Employee Incentive Plan - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of eligible compensation to be contributed by the employees	15.00%
Percentage of employee's compensation up to which the employee may contribute	6.00%
Contributions vest over period	5 years
Contributions by employer	$ 1,189	$ 1,104	$ 766
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of matching contribution by the company	50.00%

Defined Contribution Plan Vesting Period

No definition available.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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+ Details

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Balance Type:	debit
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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.

+ References

No definition available.

+ Details

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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- Details

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