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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 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.
 Three Months Ended
 March 31, 2022March 31, 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 
Granted285,867 35.45 274,606 26.65 
Converted(118,222)24.69 (115,930)25.55 
Forfeited(1,400)22.22 — — 
Outstanding at end of period1,144,433 $21.23 1,243,699 $18.46 
Vested362,594 $10.20 357,499 $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%