XML 55 R45.htm IDEA: XBRL DOCUMENT v3.23.2
Share-Based Compensation Expenses (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]        
Option awards $ 1.9 $ 2.1 $ 7.7 $ 7.2
Other share-based awards 10.6 10.3 16.8 15.8
Total share-based compensation before tax 12.5 12.4 24.5 23.0
Tax benefit 3.0 2.9 5.8 5.5
Total share-based compensation expense included in net income $ 9.5 $ 9.5 $ 18.7 $ 17.5