v3.6.0.2

Income Taxes - Tax Credit Carryforwards (Details) $ in Millions | Dec. 31, 2016 USD ($)
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Tax Credit Carryforward [Line Items] |
Taxable income required for full realization of deferred tax assets | $ 226.2
Federal | Research and development tax credit carryforward |
Tax Credit Carryforward [Line Items] |
Tax credit carryforward | 8.5
State | Research and development tax credit carryforward |
Tax Credit Carryforward [Line Items] |
Tax credit carryforward | $ 5.8

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