Stock Based Compensation - Summary of Company's Stock Options (Detail) - $ / shares |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2021 |
Dec. 31, 2020 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | ||
| Beginning balance, Number of Options | 432,500 | |
| Granted, Number of Options | 0 | |
| Forfeited, Number of Options | 0 | |
| Ending balance, Number of Options | 432,500 | 432,500 |
| Beginning balance, Weighted Average Grant Date Fair Value per Option | $ 15.45 | |
| Granted, Weighted Average Grant Date Fair Value per Option | 0 | |
| Forfeited, Weighted Average Grant Date Fair Value per Option | 0 | |
| Ending balance, Weighted Average Grant Date Fair Value per Option | 15.45 | $ 15.45 |
| Beginning balance, Weighted Average Exercise Price | 141.53 | |
| Granted, Weighted Average Exercise Price | 0 | |
| Forfeited, Weighted Average Exercise Price | 0 | |
| Ending balance, Weighted Average Exercise Price | $ 141.53 | $ 141.53 |
| Weighted Average Remaining Contractual Term | 7 years 8 months 12 days | 7 years 8 months 12 days |
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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- Definition Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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