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v3.8.0.1

Income Taxes - Schedule of U.S. and Foreign Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Deferred tax assets: |  |
Employee benefit plans | $ 5.4 | $ 7.1
Tax credit carryforwards | 4.2 | 1.5
Accrued and prepaid expenses | 31.7 | 38.6
Net operating loss carryforwards | 46.5 | 90.7
Total deferred tax assets | 87.8 | 137.9
Less: valuation allowance | (7.6) | (4.5)
Total net deferred tax assets | 80.2 | 133.4
Deferred tax liabilities: |  |
Deferred state gain | (5.8) | (5.5)
Depreciation on tangible assets | (469.7) | (721.1)
Intangible assets | (66.2) | (98.9)
Total deferred tax liabilities | (541.7) | (825.5)
Net deferred tax liability | $ (461.5) | $ (692.1)

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