v3.26.3
Employee Benefit Plans (Net Periodic Benefit Costs) (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service costs $ 0.0 $ 0.0 $ 0.0 $ 0.1
Interest costs 2.1 2.4 6.2 7.1
Amortization of net actuarial loss 0.5 0.5 1.5 1.4
Net periodic costs $ 2.6 $ 2.9 $ 7.7 $ 8.6