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Balance Sheet Information - Supplemental Information on Balance Sheets (Detail) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Inventories:    
Raw materials and supplies $ 208.8 $ 207.6
Work in process 58.0 55.9
Finished products 292.0 267.6
Total inventories 558.8 531.1
Property, plant and equipment, gross 1,654.7 1,630.7
Less: accumulated depreciation 989.0 968.2
Property, plant and equipment, net $ 665.7 $ 662.5