XML 55 R38.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Stock Award Plans and Stock Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Stock Award Plans and Stock Based Compensation |
Schedule of estimated weighted-average assumptions used in calculation of fair value of options granted | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | 2021 | ​ | ​
Weighted-average expected volatility | ​ | ​ | 53.07% | ​ | ​
Weighted-average expected term | ​ | ​ | 4.71 years | ​ | ​
Risk-free interest rate | ​ | ​ | 1.22% | ​ | ​
Expected dividend yield | ​ | ​ | 0.00% | ​ | ​
Summary of stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​ |
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​ | ​ |
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Aggregate |
​ | ​ | ​ | ​ | Exercise | ​ | Contractual | ​ | Intrinsic |
​ | ​ | Options | ​ | Price | ​ | Term | ​ | Value |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​ | (years) | ​ | (in thousands) |
Outstanding at December 31, 2022 |  | 5 | ​ | $ | 43.33 | ​ | ​ | ​ | ​ | ​ | ​
Granted |  | — | ​ |  | — | ​ | ​ | ​ | ​ | ​ | ​
Exercised |  | (2) | ​ |  | 13.75 | ​ | ​ | ​ | ​ | ​ | ​
Canceled |  | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​
Expired |  | — | ​ |  | — | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at December 31, 2023 |  | 3 | ​ | $ | 61.81 |  | 4.9 | ​ | $ | 204 | ​
Exercisable at December 31, 2023 |  | 2 | ​ | $ | 61.81 |  | 4.9 | ​ | $ | 102 | ​
Options Vested at December 31, 2023 |  | 2 | ​ | $ | 61.81 |  | 4.9 | ​ | $ | 102 | ​
​
Schedule of changes in the Company's non-vested restricted stock units | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted-Average |
​ | ​ | ​ | ​ | Grant Date Fair |
​ | ​ | Shares/units | ​ | Value per Share |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​
Outstanding at December 31, 2022 |  | 725 | ​ | $ | 39.23 | ​
Granted |  | 220 | ​ |  | 125.11 | ​
Vested |  | (397) | ​ |  | 131.71 | ​
Forfeited |  | (10) | ​ |  | 51.94 | ​
Outstanding at December 31, 2023 |  | 538 | ​ | $ | 77.22 | ​

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration