Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Effective income tax rate percentage	(51.60%)	29.30%
Fair value of contingent consideration adjustment expense (income)	$ 0	$ 1,040
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax, Provisional Income Tax Expense	200
Benefit to income tax expense	$ (573)	$ (2,354)