Stock Based Compensation -Summary of Stock-based Compensation Costs Recognized (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
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Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Total | $ 1,972,742 | $ 2,099,675 | $ 6,318,948 | $ 8,069,000 |
Restricted Stock Units (RSUs) [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Allocated share-based compensation expense | 1,876,686 | 2,037,620 | 6,227,105 | 7,796,371 |
Performance Share Units [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Allocated share-based compensation expense | 0 | 0 | (88,348) | 0 |
Employee Stock Purchase Plan [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Allocated share-based compensation expense | $ 96,056 | $ 62,055 | $ 180,191 | $ 272,629 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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