v3.26.1
Benefit Plans (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Retirement Benefits [Abstract]        
Service cost $ 0.4 $ 0.3 $ 0.8 $ 0.6
Interest cost 0.9 1.0 1.8 2.0
Expected return on plan assets (0.2) (0.2) (0.4) (0.4)
Net periodic benefit cost $ 1.1 $ 1.1 $ 2.2 $ 2.2