Investment in Kronos Worldwide, Inc. - Selected Financial Information of Kronos Balance Sheet (Detail) - Kronos - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Schedule Of Equity Method Investments [Line Items] | ||
| Current assets | $ 650.4 | $ 710.8 |
| Property and equipment, net | 434.0 | 429.5 |
| Investment in TiO2 joint venture | 78.9 | 82.9 |
| Other noncurrent assets | 16.3 | 19.5 |
| Total assets | 1,179.6 | 1,242.7 |
| Current liabilities | 182.1 | 201.7 |
| Long-term debt | 335.4 | 337.2 |
| Accrued pension and postretirement benefits | 234.2 | 209.4 |
| Other noncurrent liabilities | 32.9 | 32.5 |
| Stockholders' equity | 395.0 | 461.9 |
| Total liabilities and stockholders' equity | $ 1,179.6 | $ 1,242.7 |