Share-based Compensation and Equity (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Share-Based Compensation Expense

Share-based compensation expense was as follows:

For the years ended December 31,	2023		2022		2021
Continuing operations
Stock options, net of estimated forfeitures	$	—	$	—	$	468
Restricted stock awards	7,114		8,776		8,427
Total continuing operations	$	7,114	$	8,776	$	8,895
Discontinued operations
Share-based compensation expense for discontinued operations	—		—		1,277
Total continuing and discontinued operations	$	7,114	$	8,776	$	10,172

Summary of Stock Options Activity

The following tables summarize the stock option activity and the assumptions used to record the related share-based compensation expense for the years ended December 31, 2023, 2022 and 2021:

	2023					2022					2021
	Options	Weighted Average Exercise Price		Aggregate Intrinsic Value		Options	Weighted Average Exercise Price		Aggregate Intrinsic Value		Options	Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at January 1	559	$	7.00	$	1,461	2,163	$	9.89	$	6,098	3,428	$	17.85	$	159
Granted	—	—				—	—				—	—
Exercised	(194)	8.00		1,044		(1,510)	9.43		4,080		(583)	12.25		883
Forfeited or expired	(2)	8.34				(94)	23.17				(682)	20.14
Outstanding at December 31	363	5.74		2,890		559	7.00		1,461		2,163	9.89		6,098
Exercisable at December 31	363	5.74		2,890		559	7.00		1,461		2,163	9.89		6,098
Vested and expected to vest	363	5.74		2,890		559	7.00		1,461		2,163	9.89		6,098

Summary of Stock Option Plans, by Exercise Price Range

	Options Outstanding		Options Exercisable		Assumption Range*
Exercise Prices	Number of Shares	Weighted Average Remaining Contractual Terms (Years)	Number of Shares	Weighted Average Remaining Contractual Terms (Years)	Risk-Free Interest Rate	Expected Terms in Years	Expected Volatility
Year Ended December 31, 2023
$4.17 - $8.09	363	3.98	363	3.98	1.45% - 3.05%	3.74 - 7.12	36.40% - 58.84%
Year Ended December 31, 2022
$4.87 - $8.79	559	3.64	559	3.64	1.45% - 3.05%	3.20 -7.12	36.40% - 58.84%
Year Ended December 31, 2021
$6.38 - $7.96	414	5.98	414	5.98	2.68% - 3.05%	5.54 - 5.91	38.29% - 57.25%
$8.79 - $10.30	1,655	1.53	1,655	1.53	1.45% - 2.34%	3.20 - 7.12	35.20% - 58.84%
$15.27 - $24.33	94	0.44	94	0.44	0.76% - 2.35%	4.16 - 6.52	39.38% - 53.80%

* The expected dividend yield is zero for all options in all years.

Summary of Non-Vested Restricted Stock and Restricted Stock Units Activity

The following table summarizes the non-vested restricted stock and restricted stock units activity for the years ended December 31, 2023, 2022 and 2021:

	2023			2022			2021
	Shares	Weighted Average Grant Date Fair Value		Shares	Weighted Average Grant Date Fair Value		Shares	Weighted Average Grant Date Fair Value
Non-vested at January 1	660	$	12.92	691	$	14.82	1,000	$	15.81
Granted	712	10.99		685	12.15		818	13.98
Vested	(519)	12.72		(698)	14.05		(822)	15.01
Forfeited	(47)	11.51		(18)	12.37		(305)	15.32
Non-vested at December 31	806	11.43		660	12.92		691	14.82