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Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Deferred Tax Assets: |  |  |  |
Loss carryforwards | $ 165.5 | $ 112.3 |  |
Asbestos | 118.7 | 209.8 |  |
Employee benefits | 70.8 | 98.9 |  |
Accruals | 51.3 | 74.8 |  |
Credit carryforwards | 5.7 | 50.7 |  |
Other | 23.1 | 21.2 |  |
Gross deferred tax assets | 435.1 | 567.7 |  |
Less: Valuation allowance | 170.0 | 113.3 | $ 135.7 | $ 147.1
Net deferred tax assets | 265.1 | 454.4 |  |
Deferred Tax Liabilities: |  |  |  |
Intangibles | (45.4) | (68.3) |  |
Undistributed earnings | (39.0) | (52.3) |  |
Accelerated depreciation | (31.8) | (36.5) |  |
Investment | (0.2) | (0.4) |  |
Total deferred tax liabilities | (116.4) | (157.5) |  |
Net deferred tax assets | $ 148.7 | $ 296.9 |  |

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