Acquisitions (Tables)

3 Months Ended

Mar. 31, 2017

Business Combinations [Abstract]

Summary of Deferred Consideration Related to Acquisition

Components of short-term and long-tern deferred consideration as of December 31, 2016 and March 31, 2017, consisted of the following:

	December 31, 2016				March 31, 2017
	Short- term		Long- term		Short- term		Long- term
	(in thousands)
Mojoness, Inc. (Acquired in 2012)	$	818	$	—	$	—	—
Verio (Acquired in 2015)	50		—		50		—
Social Booster (Acquired in 2016)	40		25		40		25
AppMachine (Acquired in 2016)	4,365		7,419		4,435		7,539
Total	$	5,273	$	7,444	$	4,525	$	7,564