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Stock-Based Compensation Expense - Performance Stock Units Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost, period for recognition 1 year 9 months 18 days      
Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period 3 years     3 years
Award vesting percentage 200.00%      
Weighted-average grant-date fair value per share (in dollars per share) $ 166.86 $ 276.36 $ 250.25  
Fair value of awards vested $ 4.7 $ 8.7 $ 7.8  
Unrecognized compensation cost $ 44.8      
Unrecognized compensation cost, period for recognition 1 year 9 months 18 days