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Receivables, Net - Receivables, Net (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Receivables [Abstract]        
Trade accounts receivable $ 513.5 $ 554.0    
Notes receivable 4.2 3.9    
Other 21.6 43.1    
Receivables, gross 539.3 601.0    
Less: allowance for doubtful accounts 15.4 16.1 $ 13.3 $ 12.6
Receivables, net $ 523.9 $ 584.9