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Stock Options - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Jun. 08, 2021 | Jun. 07, 2016
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Stock options vesting period | 12 months |  |  |
Share-based Payment Arrangement, Option And Stock Appreciation Rights (SARs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares counted against share reserve for each share granted |  |  |  | 1
Number of shares added back to share reserve |  |  |  | 1
Number of shares added back to share reserve, withheld, tendered, Exchanged |  |  |  | 1
Share-based Payment Arrangement, Option And Stock Appreciation Rights (SARs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares counted against share reserve for each share granted |  |  |  | 2
Number of shares added back to share reserve |  |  |  | 2
Number of shares added back to share reserve, withheld, tendered, Exchanged |  |  |  | 2
Employee stock option |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Compensation cost related to non-vested stock options and restricted stock awards not yet recognized | $ 7.4 |  |  |
Weighted-average period over which compensation cost recognized | 19 months |  |  |
Grant date fair value | $ 2.67 | $ 3.73 |  |
Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares eligible to receive for each fully vested RSU | 1 |  |  |
Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares, granted | 700,000 | 0 |  |
Employee stock option |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Weighted-average period over which compensation cost recognized | 25 months |  |  |
Employee stock option | Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Compensation cost related to non-vested stock options and restricted stock awards not yet recognized | $ 2,900.0 |  |  |
2013 Stock Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares, granted | 200,000 |  |  |
Share-based compensation arrangement by share-based payment award, number of shares authorized |  |  | 4,000,000 | 5,858,892
2013 Stock Plan | Employee stock option |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of options, granted (in shares) | 1,774,558 | 1,226,300 |  |
Exercise price of stock options granted | $ 4.91 | $ 6.84 |  |
2021 Stock Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of shares, granted | 500,000 |  |  |
Number of options, granted (in shares) | 1,030,000 |  |  |
Exercise price of stock options granted | $ 3.46 |  |  |
Non employee director | 2013 Stock Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of options, granted (in shares) | 110,000 |  |  |
Non employee director | 2021 Stock Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Number of options, granted (in shares) | 132,000 |  |  |

X
- Definition The number of shares that would be added back to share reserve if the award expires or terminates becomes unexercised or is forfeited or otherwise terminated, surrendered or canceled as to any shares with delivery of shares or other consideration. + References No definition available. + Details
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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://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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