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Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Restricted Stock Unit and Performance Stock Unit Activity
Restricted stock unit ("RSU") and performance stock unit ("PSU") awards activity is presented in the following tables.
RSU Shares
(in 000's)
PSU Shares
(in 000's)
Total Shares
(in 000's)
Weighted Average
Grant Date
Fair Value
Unvested as of June 30, 2024
1,098.1 511.4 1,609.5 $180.52 
Granted81.3  81.3 246.99 
Vested(83.0) (83.0)181.41 
Forfeited(14.3)(1.8)(16.1)179.09 
Unvested as of September 30, 2024
1,082.1 509.6 1,591.7 $184.62 
Unvested as of June 30, 2023
1,003.4 463.6 1,467.0 $174.54 
Granted175.3 2.4 177.7 165.96 
Vested(66.4)— (66.4)145.97 
Forfeited(39.6)(4.2)(43.8)176.43 
Unvested as of September 30, 2023
1,072.7 461.8 1,534.5 $174.73 
RSU Shares
(in 000's)
PSU Shares
(in 000's)
Total Shares
(in 000's)
Weighted Average
Grant Date
Fair Value
Unvested as of December 31, 2023
990.1 458.1 1,448.2 $175.07 
Granted453.7 168.8 622.5 205.79 
Vested(315.9)(109.0)(424.9)184.44 
Forfeited(45.8)(8.3)(54.1)174.50 
Unvested as of September 30, 2024
1,082.1 509.6 1,591.7 $184.62 
Unvested as of December 31, 2022
841.3 567.0 1,408.3 $170.78 
Granted520.5 185.2 705.7 143.64 
Vested(227.1)(257.2)(484.3)120.53 
Forfeited(62.0)(33.2)(95.2)161.55 
Unvested as of September 30, 2023
1,072.7 461.8 1,534.5 $174.73