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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2022
Share-based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation, Equity Instruments Other Than Options, Activity The table below summarizes stock-based award activity.
 Six Months Ended
 June 30, 2022June 30, 2021
 Number of
Awards
Weighted
average
grant-date
fair value
Number of
Awards
Weighted
average
grant-date
fair value
Outstanding at beginning of period978,188 $17.49 1,085,023 $17.14 
Granted283,467 35.44 274,606 26.65 
Converted(170,560)22.09 (120,830)25.40 
Expired(3,000)40.02 (1,200)26.60 
Forfeited(9,000)26.06 — — 
Outstanding at end of period1,079,095 $21.34 1,237,599 $18.44 
Vested322,156 $9.76 357,499 $9.26 
Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions The market condition awards granted in 2022 were valued using a Monte Carlo simulation technique based on daily stock prices over three years and using the following variables:
2022
Risk-free interest rate2.5%
Volatility38.3%