v3.26.1
Property, plant and equipment-net - Summary of Property, plant and equipment-net (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Property, Plant and Equipment [Abstract]    
Property, plant, and equipment—original cost $ 965.1 $ 881.2
Accumulated depreciation (366.0) (340.8)
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization, Total $ 599.1 $ 540.4