Income Taxes (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Goodwill amortization period	15 years
Deferred tax assets, net	$ 1.4
Deferred tax assets, valuation allowance	$ 8.2
Operating loss carryforwards		$ 41.3
Portion subject to an IRS Section 382 limitation from 1999
Income Tax Contingency [Line Items]
Operating loss carryforwards, limitations on use, amount		$ 0.1