v3.22.4
Stock Compensation Plans (Policies)
12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation Policy Restricted stock, restricted stock units and stock options are measured at the grant date fair value and amortized to stock compensation expense over the requisite service period. The fair value of stock options is estimated on the date of grant using the Black-Scholes option-pricing model. The grant date weighted average assumptions used during the years ended December 31, 2022, 2021 and 2020 were: risk-free interest rate of 1.7%, 0.7% and 1.4%, respectively; expected lives of 5.7 years, 5.9 years and 5.5 years, respectively; and expected volatility of 28% during the year ended December 31, 2022 and 27% during each of the years ended December 31, 2021 and 2020. The Company’s volatility assumptions represent management’s best estimate and were based on a review of historical and implied volatility. Expected lives were estimated using historical exercise data.  The valuations assume no dividends are paid. The Company has elected an accounting policy to assume zero forfeitures for stock awards grants and account for forfeitures when they occur.