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Stock Incentive Plan (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Disclosure of Share-based Compensation Arrangements
The Company recorded share-based compensation expense as follows for the years ended December 31, 2021, 2020 and 2019:

Years Ended
December 31,
2021		December 31,
2020		December 31,
2019
Salaries, wages and employee benefits - continuing operations$9,108 $9,715 $10,595 
Salaries, wages and employee benefits - discontinued operation16 85 179 
Total share-based compensation expense$9,124 $9,800 $10,774 
Schedule of Weighted Average Assumptions
The weighted average grant-date fair value of the stock option awards granted under the Plan and the weighted average assumptions under the Black-Scholes option-pricing model were as follows for the years ended December 31, 2021 and 2020. The Company did not grant stock options during the year ended December 31, 2019.
December 31,
2021		December 31,
2020
Weighted average grant-date fair value$18.36 $14.79 
Weighted average assumptions under Black-Scholes option model:
Expected dividend yield1.1 %1.1 %
Expected stock price volatility28.9 %24.1 %
Risk-free interest rate0.6 %1.5 %
Expected life of awards (years)5.85.9
Schedule of Stock Option Activity
Stock option transactions during the year ended December 31, 2021 on a continuing operations basis were as follows:
Number of Shares Weighted Average Exercise Price
Outstanding as of January 1359 $55.79 
Granted39 75.05 
Exercised(56)53.91 
Forfeited or Canceled— — 
Outstanding as of December 31342 $58.44 
The following table sets forth the exercise price range, number of shares, weighted average exercise price and remaining contractual lives by groups of similar price on a continuing operations basis as of December 31, 2021:

Stock Options OutstandingStock Options Exercisable
Range of Exercise PricesNumber of SharesWeighted Average Remaining Contractual Life (in years)Weighted Average Exercise PriceExercisable as of December 31, 2021Weighted Average Exercise Price
$43.67 -$47.82 107,403 1.6$45.87 107,403 $45.87 
50.71 -59.89 56,689 2.055.66 56,689 55.66 
60.42 -65.96 139,309 4.064.60 103,391 64.13 
$75.05 -$75.05 39,139 6.175.05 — — 
342,540 $58.44 267,483 $55.01 
Stock option transactions during the year ended December 31, 2021 on a discontinued operation basis were as follows:
Number of SharesWeighted Average Exercise Price
Outstanding as of January 114$52.15 
Granted—— 
Exercised(14)52.15 
Forfeited or Canceled—— 
Outstanding as of December 31—$— 
Schedule of Restricted Share Activity
Restricted share transactions on a continuing operations basis for the year ended December 31, 2021 were as follows:
Number of Shares Weighted Average Grant Date Fair Value
Outstanding as of January 1213 $62.78 
Granted109 75.35 
Vested(110)61.77 
Forfeited(21)69.08 
Outstanding as of December 31191 $69.84 
Restricted share transactions on a discontinued operation basis for the year ended December 31, 2021 were as follows:
Number of SharesWeighted Average Grant Date Fair Value
Outstanding as of January 18 $60.83 
Granted— — 
Vested(4)60.54 
Forfeited(4)63.62 
Outstanding as of December 31— $— 
Director restricted share transactions for the year ended December 31, 2021 were as follows:
Number of Shares Weighted Average Grant Date Fair Value
Outstanding as of January 124 $42.88 
Granted17 93.39 
Vested(26)47.12 
Forfeited— — 
Outstanding as of December 3115 $93.46 

Year Ended
December 31,
2021		December 31,
2020		December 31,
2019
Share-based compensation expense for restricted shares$1,436 $1,026 $970 
Excess tax benefit for the vesting of restricted shares$342 $253 $244 
Schedule of Nonvested Performance-based Units Activity The weighted average grant-date fair value of performance awards granted under the Plan and the weighted average assumptions under the Monte Carlo simulation model were as follows for the years ended December 31, 2021, 2020 and 2019:
Year Ended
December 31,
2021		December 31,
2020		December 31,
2019
Weighted average grant-date fair value$87.33 $69.15 $61.42 
Weighted average assumptions under the Monte Carlo simulation model:
Expected stock price volatility34.5 %23.5 %23.4 %
Weighted average risk-free interest rate0.2 %1.4 %2.5 %
Schedule of Performance Award Transactions
Performance award transactions for the year ended December 31, 2021 on a continuing operations basis were as follows assuming target levels of performance:
Number of Shares Weighted Average Grant Date Fair Value
Outstanding as of January 165 $67.62 
Granted36 87.33 
Earned(11)72.30 
Forfeited or unearned (11)70.22 
Outstanding as of December 3179 $75.61 
Schedule of Employee Stock Purchase Plan
Employee stock purchase plan activity and related information was as follows on a continuing operations basis:
Year Ended
December 31, 2021December 31, 2020December 31, 2019
Shares purchased by participants under the ESPP12 14 11 
Average purchase price$75.71 $44.24 $51.50 
Weighted average fair value of each purchase under the ESPP granted1
$30.68 $20.99 $13.68 
Share-based compensation expense for ESPP$369 $292 $150 
1 Equal to the discount from the market value of the common stock at the end of each six month purchase period

Employee stock purchase plan activity and related information was as follows on a discontinued operation basis:
Year Ended
December 31, 2021December 31, 2020December 31, 2019
Shares purchased by participants under the ESPP— 1 1 
Average purchase price$— $44.35 $51.39 
Weighted average fair value of each purchase under the ESPP granted1
$— $18.11 $13.48 
Share-based compensation expense for ESPP$— $20 $13 
1 Equal to the discount from the market value of the common stock at the end of each six month purchase period