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Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014 | Jun. 30, 2013
--- | --- | --- | ---
Deferred tax assets: |  |  |
Depreciation and amortization | $ 10.9 | $ 11.1 |
Accrued expenses | 27.6 | 28.5 |
Net operating loss, capital loss, alternative minimum tax, research and development, and foreign tax credit carryforwards | 29.1 | 44.6 |
Definite lived intangibles | 1.4 | 1.6 |
Pension benefits | 33.5 | 35.3 |
Deferred revenue | 0.0 | 0.1 |
Gross deferred tax assets | 102.5 | 121.2 |
Valuation allowance | (5.9) | (3.8) | $ (10.4)
Total deferred tax assets | 96.6 | 117.4 |
Deferred tax liabilities: |  |  |
Depreciation and amortization | (6.6) | (5.0) |
Expenses capitalized for book | (2.0) | (1.4) |
Pension benefits | (14.7) | (13.4) |
Intangibles liabilities | (52.6) | (52.1) |
Deferred Tax Liabilities, Other | (0.1) | (0.1) |
Gross deferred tax liabilities | (76.0) | (72.0) |
Net deferred tax assets | $ 20.6 | $ 45.4 |

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