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Balance Sheet Information - Supplemental Information on Balance Sheets (Detail) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Inventories:    
Raw materials and supplies $ 211.6 $ 207.6
Work in process 61.8 55.9
Finished products 326.7 267.6
Total inventories 600.1 531.1
Property, plant and equipment, gross 1,715.8 1,630.7
Less: accumulated depreciation 1,025.2 968.2
Property, plant and equipment, net $ 690.6 $ 662.5