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Share-based Compensation and Equity (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Share-Based Compensation Expense
Share-based compensation expense was as follows:
For the years ended December 31, 202120202019
Continuing operations
Stock options, net of estimated forfeitures$468 $1,291 $3,101 
Restricted stock awards8,427 8,957 7,224 
Total continuing operations$8,895 $10,248 $10,325 
Discontinued operations
Share-based compensation expense for discontinued operations1,277 3,050 2,669 
Total continuing and discontinued operations$10,172 $13,298 $12,994 
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, 2021, 2020 and 2019:
202120202019
OptionsWeighted Average Exercise PriceAggregate Intrinsic ValueOptionsWeighted Average Exercise PriceAggregate Intrinsic ValueOptionsWeighted Average Exercise PriceAggregate Intrinsic Value
Outstanding at January 13,428 $17.85 $159 5,388 $18.18 $3,396 9,020 $18.79 $744 
Granted— — — — 698 14.99 
Exercised(583)12.25 883 (860)17.60 2,353 (1,569)16.95 794 
Forfeited or expired(682)20.14 (1,100)19.66 (2,761)20.06 
Outstanding at December 312,163 9.89 6,098 3,428 17.85 159 5,388 18.18 3,396 
Exercisable at December 312,163 9.89 6,098 3,292 17.97 159 4,846 18.50 2,136 
Vested and expected to vest2,163 9.89 6,098 3,426 17.85 159 5,274 18.20 3,344 
Summary of Stock Option Plans, By Exercise Price Range
Options OutstandingOptions ExercisableAssumption Range*
Exercise PricesNumber
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, 2021
$6.38 - $7.96
414 5.98414 5.98
2.68% - 3.05%
5.54 - 5.91
38.29% - 57.25%
$8.79 - $10.30
1,655 1.531,655 1.53
1.45% -2.34%
3.20 - 7.12
35.20% - 58.84%
$15.27 - $24.33
94 0.4494 0.44
0.76% -2.35%
4.16 - 6.52
39.38%- 53.80%
Year Ended December 31, 2020
$13.97 - $15.55
748 6.84625 6.58
1.99% - 3.05%
3.25 - 5.91
38.29% - 64.18%
$16.38 - $17.89
2,247 2.722,235 2.68
1.38% - 2.34%
 3.20 - 7.12
 35.20% - 58.84%
$21.00
146 0.70146 0.70
1.81%
 4.00
 57.79%
$22.88 - $31.92
287 0.76287 0.76
 0.73% - 2.86%
 4.00 - 6.52
 39.03% - 53.80%
Year Ended December 31, 2019
$13.97 - $15.55
944 7.89524 7.06
 1.81% - 3.05%
 3.25 - 5.91
 38.29% - 64.18%
$17.00 - $19.56
3,597 3.123,475 2.95
 1.38% - 2.94%
 2.60 - 10.00
 35.20% - 58.84%
$21.00 - $21.52
330 1.09330 1.09
 0.68% - 2.61%
 3.79 - 6.55
 38.16% - 57.79%
$22.32 - $31.92
517 1.44517 1.44
 0.60% - 3.03%
 3.18 - 6.52
 36.93% - 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, 2021, 2020 and 2019:
202120202019
SharesWeighted Average Grant Date Fair ValueSharesWeighted Average Grant Date Fair ValueSharesWeighted Average Grant Date Fair Value
Non-vested at January 11,000 $15.81 1,251 $14.69 1,895 $15.31 
Granted818 13.98 969 15.80 1,003 15.10 
Vested(822)15.01 (861)14.11 (765)16.18 
Forfeited(305)15.32 (359)15.95 (882)15.20 
Non-vested at December 31691 14.82 1,000 15.81 1,251 14.69