Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amounts of goodwill by operating segment were as follows (in thousands):

	Patent Risk Management		Discovery Services		Total
Balance as of December 31, 2017	$	19,978	$	50,778	$	70,756
Foreign currency translation adjustments	—		1,755		1,755
Balance as of March 31, 2018	$	19,978	$	52,533	$	72,511