Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 2,214	$ 2,124	$ 5,196	$ 3,965
Effective income tax rate	38.50%	39.00%	38.40%	38.60%
Unrecognized tax benefits	$ 4,100		$ 4,100		$ 3,500
Unrecognized tax benefits that would impact effective tax rate	$ 2,500		$ 2,500		$ 2,100