Goodwill - Schedule of Goodwill Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill
Net balance at beginning of period	$ 54,409	$ 80,853
eSignLive measurement period adjustments		(24,419)
Net foreign currency translation	1,923	(2,025)
Net balance at end of period	$ 56,332	$ 54,409