Stock Based Compensation -Summary of Stock-based Compensation Costs Recognized (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Stock options | $ 284,994 | $ 284,994 | ||
| Total | 2,216,539 | $ 1,972,742 | 8,591,089 | $ 6,318,948 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Compensation-based payments | 1,010,990 | 1,876,686 | 4,571,726 | 6,227,105 |
| Performance Shares [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Compensation-based payments | 843,741 | 0 | 3,539,588 | (88,348) |
| Employee Stock Purchase Plan [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Compensation-based payments | $ 76,814 | $ 96,056 | $ 194,781 | $ 180,191 |
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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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- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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