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SHARE-BASED AWARDS AND STOCK OPTIONS (Tables)
6 Months Ended
Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation Expense
The following table summarizes share-based compensation expense and the related income tax benefit recognized for our share-based awards and stock options:
Three Months EndedSix Months Ended
June 30, 2023June 30, 2022June 30, 2023June 30, 2022
(in thousands)
Share-based compensation expense$47,135 $47,014 $136,701 $85,414 
Income tax benefit$22,474 $10,318 $31,890 $19,997 
Schedule of Changes in Unvested Restricted Stock Awards and Performance Awards
The following table summarizes the changes in unvested restricted stock and performance awards for the six months ended June 30, 2023:
SharesWeighted-Average
Grant-Date
Fair Value
(in thousands)
Unvested at December 31, 20222,145 $159.04 
Replacement awards202 98.44 
Granted1,252 112.42 
Vested(940)160.85 
Forfeited(86)136.88 
Unvested at June 30, 20232,573 $131.35 
Schedule of Changes in Stock Option Activity
The following table summarizes stock option activity for the six months ended June 30, 2023: 
OptionsWeighted-Average Exercise PriceWeighted-Average Remaining Contractual TermAggregate Intrinsic Value
(in thousands)(years)(in millions)
Outstanding at December 31, 20221,139 $111.75 5.4$17.3
Replacement awards142 98.44 
Granted233 110.83 
Forfeited(36)109.92 
Exercised(17)52.80 
Outstanding at June 30, 20231,461 $109.07 3.7$19.0
Options vested and exercisable at June 30, 20231,155 $110.39 2.4$16.5
Schedule of Fair Valuation Assumptions Fair value was estimated on the date of grant using the Black-Scholes valuation model with the following weighted-average assumptions:
Six Months Ended
June 30, 2023June 30, 2022
Risk-free interest rate3.84%1.87%
Expected volatility45%40%
Dividend yield0.81%0.56%
Expected term (years)55