XML 125 R109.htm IDEA: XBRL DOCUMENT v3.25.0.1
Stock Plans and Share-Based Compensation - Schedule of Share-Based Payment Arrangement Activity Expensed (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax $ 38.1 $ 46.7 $ 47.0
Income tax benefit (9.1) (11.2) (11.3)
Total share-based compensation expense, after tax 29.0 35.5 35.7
Stock options      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax 0.0 0.4 1.4
Restricted stock units      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax 15.1 18.9 17.6
Restricted stock awards      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax 0.0 0.6 1.3
Performance based restricted share unit awards      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax 21.9 26.8 26.7
Cash-settled restricted stock      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total share-based compensation expense, before tax $ 1.1 $ 0.0 $ 0.0