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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	​

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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.

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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.

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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.

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