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Stock-Based Awards - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jun. 20, 2016 | Mar. 31, 2020 | Mar. 31, 2019
Share-based Payment Award |  |  |
Stock option issuance period |  | 10 years |
Option vested period |  | 1 year |
Shares of common stock authorized to issue under equity award plan | 10,000,000 |  |
Stock-based compensation expense |  | $ 3,239 | $ 3,072
Below 25th Percentile [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 0.00% |
At 25th Percentile [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 50.00% |
At 50th Percentile [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 100.00% |
At 100th Percentile [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 200.00% |
Performance Based Restricted Stock Unit [Member] | Maximum [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 200.00% |
Performance Based Restricted Stock Unit [Member] | Minimum [Member] |  |  |
Share-based Payment Award |  |  |
Shares granted and outstanding, Vesting percentage |  | 0.00% |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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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 vesting of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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