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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense A summary of the Company's stock-based compensation expense is presented in the following table:
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2025202420252024
PRSU expense$5.2 $3.6 $13.6 $12.2 
RSU expense4.8 4.4 13.7 13.4 
Option expense2.2 0.6 3.4 1.7 
Total stock-based compensation expense$12.2 $8.6 $30.7 $27.3