Investment in TiO2 Manufacturing Joint Venture - Summary of Balance Sheets of LPC (Detail) - Louisiana Pigment Company, L.P. - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
ASSETS    
Current assets $ 96.2 $ 107.4
Property and equipment, net 110.1 110.6
Total assets 206.3 218.0
LIABILITIES AND PARTNERS' EQUITY    
Other liabilities, primarily current 37.8 37.3
Partners' equity 168.5 180.7
Total liabilities and partners' equity $ 206.3 $ 218.0