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v3.20.4

Retirement Plan - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Retirement plan, employees maximum pre-tax contributions percentage | 60.00%
401 (K) Plan |
Defined Benefit Plan Disclosure [Line Items] |
Retirement plan, employees maximum pre-tax contributions percentage | 6.00%
Employer matching contribution, percent of employee's contribution | 50.00%
Maximum annual contributions per employee, amount | $ 5,000

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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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Balance Type: | na
Period Type: | duration

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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum amount the employee may contribute to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |