XML 54 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accounts Payable and Accrued Liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Accounts Payable And Accrued Liabilities [Line Items]    
Accounts payable $ 117.4 $ 107.9
Employee benefits 31.1 27.0
Accrued sales discounts and rebates 27.5 11.7
Other 38.2 43.0
Total 227.9 205.8
LPC    
Accounts Payable And Accrued Liabilities [Line Items]    
Payable to affiliate $ 13.7 $ 16.2