Income Taxes- Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Loss Carryforwards [Line Items]
Effective tax rate	25.10%	26.30%	33.40%	25.60%
Increase in income tax expense			$ 2.7
Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Open tax year			2016
State
Operating Loss Carryforwards [Line Items]
Increase in valuation allowance of net operating loss carryforwards			$ 1.8
Reduction in deferred tax asset related to income tax credits			$ (0.9)