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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2023
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 March 31,
(in millions)20232022
PRSU expense$5.1 $8.3 
Option expense0.6 — 
RSU/DSU expense5.1 5.5 
Total stock-based compensation expense$10.8 $13.8