Investment in Kronos Worldwide, Inc. - Selected Financial Information of Kronos Balance Sheet (Detail) - Kronos - USD ($) $ in Millions |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Schedule Of Equity Method Investments [Line Items] | ||
| Current assets | $ 710.8 | $ 879.9 |
| Property and equipment, net | 429.5 | 479.7 |
| Investment in TiO2 joint venture | 82.9 | 89.0 |
| Other noncurrent assets | 19.5 | 184.5 |
| Total assets | 1,242.7 | 1,633.1 |
| Current liabilities | 201.7 | 234.2 |
| Long-term debt | 337.2 | 339.7 |
| Accrued pension and postretirement benefits | 209.4 | 245.2 |
| Other noncurrent liabilities | 32.5 | 32.9 |
| Stockholders' equity | 461.9 | 781.1 |
| Total liabilities and stockholders' equity | $ 1,242.7 | $ 1,633.1 |