Income Taxes - Additional Information (Details) $ in Millions	Dec. 31, 2016 USD ($)
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits that would impact tax expense	$ 7.6
Tax deferred expense, compensation and benefits	3.0
Undistributed foreign earnings	2.5
Income tax expense, if undistributed foreign earnings are distributed	1.0
Research Tax Credit Carryforward | Internal Revenue Service (IRS)
Tax Credit Carryforward [Line Items]
Tax credit carryforward amount	1.7
Research Tax Credit Carryforward | State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Tax credit carryforward amount	$ 7.2