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Receivables, Net - Receivables, Net (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Receivables [Abstract]        
Trade accounts receivable $ 554.0 $ 476.8    
Notes receivable 3.9 6.1    
Other 43.1 30.5    
Receivables, gross 601.0 513.4    
Less: allowance for doubtful accounts 16.1 13.3 $ 12.6 $ 12.9
Receivables, net $ 584.9 $ 500.1