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Trade Accounts Receivable, Net - Summary of Changes in Estimated Losses on Settlement (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of trade accounts receivables [line items]      
Beginning balance $ (52.9)    
Additions (5.8)    
Reversal 17.7    
Write-off 3.6    
Foreign exchange variation (7.6)    
Ending balance (45.0) $ (52.9)  
Previously stated [member]      
Disclosure of trade accounts receivables [line items]      
Beginning balance $ (52.9) (41.6) $ (38.4)
Additions   (22.1) (36.0)
Reversal   9.9 12.5
Write-off   5.2 10.3
Foreign exchange variation   (4.3) 10.0
Ending balance   $ (52.9) $ (41.6)