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Share-Based Compensation and Capital Stock (Tables)
 6 Months Ended
Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Pre-Tax Stock-Based Compensation Expenses The components of the Company’s pretax share-based compensation activity are as follows for the three and six months ended June 30, 2022 and 2021:
Three Months Ended June 30,
Six Months Ended June 30,
(in thousands)20222021
2022
2021
Stock options$1,177 $932 $2,229 $1,548 
Restricted stock awards3,558 2,323 6,601 4,842 
Performance vested restricted stock units4,810 3,144 8,164 4,810 
Total share-based compensation expense$9,545 $6,399 $16,994 $11,200 
Summary of Change In Stock-Based Award Activity A summary of share-based award activity as of and changes during the six months ended June 30, 2022 are presented below:
 Stock OptionsRestricted StockPerformance Vested
Restricted Stock Units
 OptionsWeighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Term		SharesWeighted
Average
Grant Date
Fair Value		SharesWeighted
Average
Grant Date
Fair Value
Outstanding at January 1, 2022910,944 $83.14 236,599 $92.60 412,642 $114.70 
Granted155,774 146.68 255,786 145.64 111,585 181.91 
Performance-Based Leveraging (1)
— — — — 21,281 153.75 
Exercised/Vested(43,934)53.70 (93,354)87.20 — — 
Expired(986)51.49 — — (78,370)81.15 
Forfeited(1,050)146.68 (6,551)104.45 (1,460)133.25 
Outstanding at June 30, 20221,020,748 $94.07 5.9392,480 $128.25 465,678 $136.02 
Options exercisable at June 30, 2022546,114 $76.29 3.8
(1) PVRSUs outstanding have been increased by 21,281 units in the six months ended June 30, 2022 due to the Company exceeding the targeted performance conditions contained in PVRSUs.
Schedule of Weighted Average Assumptions of Black-Scholes Option-Pricing Model The fair value of the options granted was estimated on the grant date using the Black-Scholes option-pricing model with the following weighted average assumptions:
2022 Grants
Risk-free interest rate1.92 %
Expected volatility29.39 %
Expected life of stock option5.9 years
Dividend yield0.65 %
Requisite service period4 years
Contractual life10 years
Weighted average fair value of options granted (per option)$43.25