Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Taxes [Line Items]
Effective income tax rate reconciliation, percent	34.50%	39.20%	35.60%	37.70%
Unrecognized tax benefits	$ 0.8		$ 0.8
Unrecognized tax benefits that would impact effective tax rate	0.7		0.7
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	$ 0.7		$ 0.7
Internal Revenue Service (IRS) | Earliest Tax Year
Income Taxes [Line Items]
Open tax year			2014
Internal Revenue Service (IRS) | Latest Tax Year
Income Taxes [Line Items]
Open tax year			2016
State and Foreign Jurisdictions | Earliest Tax Year
Income Taxes [Line Items]
Open tax year			2013
State and Foreign Jurisdictions | Latest Tax Year
Income Taxes [Line Items]
Open tax year			2016