Income Taxes - Provision for Income Taxes and Effective Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income (loss) before Income Taxes	$ 3,401	$ (156)	$ 10,321	$ 1,819
Income tax provision (benefit)	$ 415	$ (1,191)	$ 2,316	$ (598)
Effective tax rate	12.20%	763.50%	22.40%	(32.90%)
Statutory income tax rate	21.00%	21.00%	21.00%	21.00%