Stock Award Plans and Stock-Based Compensation - Employee Stock Options (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Granted (in shares) | 0 | |
| 2018 Plan | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Granted (in shares) | 0 | |
| Options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based payment charges | $ 300,000 | $ 900,000 |
| Fair value of non-vested options | $ 1,700,000 | |
| Weighted average remaining term | 1 year 1 month 2 days | |
| Granted (in shares) | 0 | |
| Options | 2018 Plan | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Dividend assumptions | $ 0 | |
| X | ||||||||||
- Definition Amount of fair value of non-vested option for the period. No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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- Details
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