Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (294)	$ 751
Reversal of reserve due to favorable foreign tax ruling	200
Excess tax benefits related to stock-based compensation	100
Effective tax rate		21.50%
Unrecognized tax benefits	3,800
Unrecognized tax benefits that would impact effective rate	3,500
Decrease in unrecognized tax benefits is reasonably possible in next 12 months	100
Accrued interest and penalties	$ 300		$ 300