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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2022
Share-based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation, Equity Instruments Other Than Options, Activity The table below summarizes award activity.
 Year Ended December 31
 202220212020
 Number of
Awards
Weighted
average
grant-date
fair value
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 $17.14 963,832 $17.67 
Granted292,577 35.19 273,845 26.65 437,054 18.85 
Converted(327,160)20.43 (316,430)22.76 (278,163)21.34 
Expired(3,000)40.02 (58,650)24.79 (34,100)19.40 
Forfeited(11,400)27.44 (5,600)23.31 (3,600)21.62 
Outstanding at end of period929,205 $21.83 978,188 $17.49 1,085,023 $17.14 
Vested497,128 $13.05 414,949 $11.43 460,685 $13.00 
Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions The market condition awards were valued using a Monte Carlo simulation technique based on volatility over three years for the awards granted in 2022, 2021 and 2020 using daily stock prices and using the following variables:
202220212020
Risk-free interest rate2.5%0.3%0.7%
Volatility38.3%39.7%35.0%