Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred tax liability, net	$ 22,413		$ 22,413		$ 21,930
Operating Loss Carryforwards	2,300		2,300
Tax Credit Carryforward, Amount	415		415
Net operating loss carryforwards, valuation allowance	1,100		1,100
Gross unrecognized tax benefits	3,100		$ 3,100
Effective income tax rate on unrecognized tax benefits that would impact effective tax rate			0.50%
Recognized benefit in interest	44		$ 14
Accrued interest related to unrecognized tax benefits	$ 339		$ 339
Effective Income Tax Rate Reconciliation, Percent	25.90%	35.90%	24.90%	36.10%