v3.7.0.1

Income Taxes - Balance Sheet Presentation of Net Deferred Tax Liability (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets: |  |
Deferred income taxes | $ 7.4 | $ 1.7
Liabilities: |  |
Deferred income taxes | 223.7 | 231.3
Net deferred tax liability | $ 216.3 | $ 229.6

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